ADNS-2080
Low Power Optical Mouse Sensor
Data Sheet
Description
The Avago Technologies ADNS-2080 is a low power, small
form factor optical mouse sensor. It has a new low-power
architecture and automatic power management modes,
making it ideal for battery, power-sensitive applications –
such as cordless input devices.
The ADNS-2080 is capable of high-speed motion detec-
tion – up to 30 ips and 20 g. In addition, it has an on-chip
oscillator and requires an external resistor to set the LED
current.
The ADNS-2080 along with the ADNS-5110-001 lens, LED
clip, and HSDL-4261 IR LED, or HLMP-EG3E-xxxxx Red LED
form a complete and compact mouse tracking system.
There are no moving parts and this translates to high reli-
ability and less maintenance for the end user. In addition,
precision optical alignment is not required, facilitating
high volume assembly.
The sensor is programmed via registers through a two-
wire serial port. It is housed in an 8-pin staggered dual
in-line package (DIP).
Features
• Low Power Architecture
• Small Form Factor
• Programmable Periods / Response Times and Downshift
Times from one mode to another for the Power-saving
Modes
• High Speed Motion Detection up to 30 ips and 20 g
• External Interrupt Output for Motion Detection
• Internal Oscillator – no clock input needed
• Selectable Resolution of up to 2000 cpi
• Operating Voltage: as low as 2.1 V
• IO reference voltage of 1.7 V to 3.3 V
• 2-wire serial port interface
Applications
• Optical mice and optical trackballs
• Integrated input devices
• Battery-powered input devices
2
Theory of Operation
The ADNS-2080 is based on Optical Navigation Technol-
ogy, which measures changes in position by optically
acquiring sequential surface images (frames) and math-
ematically determining the direction and magnitude of
movement.
The ADNS-2080 contains an Image Acquisition System
(IAS), a Digital Signal Processor (DSP), and a two wire serial
port.
The IAS acquires microscopic surface images via the lens
and illumination system. These images are processed
by the DSP to determine the direction and distance of
motion. The DSP calculates the Dx and Dy relative dis-
placement values.
An external microcontroller reads and translates the Dx
and Dy informa tion from the sensor serial port into PS2,
USB, or RF signals before sending them to the host PC.
Pinout of ADNS-2080 Optical Mouse Sensor
Pin Name
Input/
Output Description
1 SDIO I/O Serial Data Input/Output
2 LED I LED Illumination
3 MOTION O Motion Interrupt Output
(Default active low,
edge triggered)
4 VDDIO I Input/Output Reference Voltage
5 SCLK I Serial Clock
6 GND I Ground
7 VDD O Regulator output
8 VDDA I Supply Voltage
Figure 1. Package Outline Drawing (Top View)
Item Marking Remarks
Product Number A2080
Date Code XYYWWZ X = Subcon Code
YYWW = Date Code
Z = Sensor Die Source
Lot Code VVV Numeric
8
7
6
5
4
3
2
1
Lot Code
Product Number
Date Code
3
Figure 2. Package Outline Drawing
CAUTION: It is advised that normal static precautions be taken in handling and assembling
of this component to prevent damage and/or degradation which may be induced by ESD.
Clear Optical Path
Pin 1
Protective
Kapton Tape
4.55
0.179
3.92
0.154
∅0.70
0.028
∅4.12
0.162
9.90
0.390
Lead Oset 1.00
0.039
Lead Pitch 2.00
0.079
Lead Width 0.50
0.020
Lot Code
Date Code
Product
Number
Pin 1
Features for
Illustration only
A
A
9.10
0.358
12.85 (At shoulder)
0.506
12.85 ±0.50 (At lead tip)
0.506 ±0.020
3.72
0.146
3.50
0.138
5.15
0.203
90 ± 3°
Section A-A
( 2.74 )
0.108
( 0.04 )
0.002
Notes:
1. Dimensions in millimeter / inches.
2. Dimensional tolerance: ± 0.1mm.
3. Coplanarity of leads: 0.1mm.
4. Lead pitch tolerance: ± 0.15mm.
5. Non-cumulative pitch tolerance: ± 0.15mm.
6. Angular tolerance: ± 3°
7. Maximum ash: 0.2mm.
8. Brackets () indicate reference dimension.
9. Document Number: LED_SPC_8C_PKG_002
4
Overview of Optical Mouse Sensor Assembly
Avago Technologies provides an IGES file drawing de scribing the base plate molding features for lens and PCB align-
ment. The ADNS-2080 sensor is designed for mounting on a through-hole PCB, looking down. There is an aperture
stop and features on the package that align to the lens. The ADNS-5110-001 lens provides optics for the imaging of the
surface as well as the illumination of the surface at the optimum angle. Features on the lens align it to the sensor, base
plate, and clip with the LED. The LED clip holds the LED in relation to the lens. The LED must be inserted into the clip and
the LED’s leads formed prior to loading on the PCB. The LEDs recommended for illumination include HSDL-4261 IR LED
and HLMP-EG3E Red LED.
Figure 3. Recommended PCB Mechanical Cutouts and Spacing
Notes:
1. Dimensions in millimeter/inches
2. View from component side of PCB
(or top view of mouse)
26
1.024
25.00
0.984
2X
24.15
0.951
2X
14.94
0.588
14.5
0.571
13.06
0.514
Pin 1 0
Optical center
Optional hole for
alignment post if used
Clear zone
0
0.80
0.031
10X ø
3.00
0.118
ø
2.00
0.079
3X
1.00
0.039
0.383999
0.015118
1.37
0.054
2.25
0.089
5.02
0.198
7.56
0.298
10.35
0.407
11.22
0.442
12.60
0.496
12.9
0.508
0.3
0.012
6.290362
0.247652
5
Note:
A – Distance from object surface to lens reference plane
B – Distance from object surface to sensor reference plane
Figure 5. Distance from lens reference plane to tracking surface (Z)
Important Note: Pin 1 of sensor should be located nearest to the LED
Figure 4. 2D Assembly drawing of ADNS-2080 (Top and Side View)
Sensor
Surface
Lens Reference Plane
Lens
B
A
6.87
0.271
2.40
0.094
Pin 1
33.45
1.317
13.10
0.516
AA
LED Clip
LED
LensSensor
PCB
Alignment Post
(Optional)
Base Plate
Section A A
10.60
0.417
2.40
0.094
7.45
0.293
6
PCB Assembly Considerations
1. Insert the sensor and all other electrical components
into PCB.
2. Insert the LED into the assembly clip and bend the
leads 90 degrees.
3. Insert the LED clip assembly into PCB.
4. This sensor package is only qualified for wave-solder
process.
5. Wave solder the entire assembly in a no-wash solder
process utilizing solder fixture. The solder fixture
is needed to protect the sensor during the solder
process. It also sets the correct sensor-to-PCB distance
as the lead shoulders do not normally rest on the PCB
surface. The fixture should be designed to expose
the sensor leads to solder while shielding the optical
aperture from direct solder contact.
6. Place the lens onto the base plate.
7. Remove the protective Kapton tape from optical
aperture of the sensor. Care must be taken to
keep contaminants from entering the aperture.
Recommend not to place the PCB facing up during the
entire mouse assembly process. Recommend to hold
the PCB first vertically for the Kapton removal process.
8. Insert PCB assembly over the lens onto the base plate
aligning post to retain PCB assembly. The sensor
aperture ring should self-align to the lens.
Figure 7. Block diagram of ADNS-2080 optical mouse
9. The optical position reference for the PCB is set by the
base plate and lens. Note that the PCB motion due to
button presses must be minimized to maintain optical
alignment.
10. Install mouse top case. There MUST be a feature in
the top case to press down onto the PCB assembly to
ensure all components are interlocked to the correct
vertical height.
Customer supplied base plate with
recommended alignment features
per IGES drawing
ADNS-5110-001
Customer supplied PCB
ADNS-2080 (Sensor)
LED Clip
LED
Important Note: IR LED is recommended for lower power consumption.
Figure 6. Exploded View of Assembly
ADNS-2080
POWER AND CONTROLLED DRIVE
IMAGE ARRAY
DSP
OSCILLATOR
SERIAL PORT AND REGISTERS
SDIO
SCLK
MOTION
VDD
VDDA
LED
GND
VDDIO
7
Figure 8a. Schematic diagram for ADNS-2080 mainboard (cordless application)
AFFINEX
COM
NC
NO
SW2
COM
NC
NO
SW3
COM
NC
NO
SW4
Q1
Z-ENCODER_3P
SW5
TACT_SW
COM
ZA
ZB
R14
1M
R13
1M
S1
S4
S3
S3
R1
1
2
8
3
4
5
12
13
SW1
SLIDE SW SPDT
P1
BT1
2AA BATTERY
P3
P4
P5
6
P17
P18
P19
7
VBAT GND
VDD_LED
P12
P13
P14
P15
P11
9
P10
P9
P2
CON1
PCB_SKT_SMD_1.27/2X5
PROG S2
R2
S1 R1
RESET
RESETPROG
MSCK
COM
MOTION
R1
R2
S1
S2
S3
S4
R0
CS
MISO
MOSI
ZA
ZB
P20
Note:
Option 1:
R1 = 1M3 , R2 = 453k
R3 = 300k , R4 = 1M1
VCC_DC1 = 1.9V
VCC_DC2 = 2.3V
Option 2:
R1 = 1M6 , R2 = 470k
R3 = 300k , R4 = 1M1
VCC_DC1 = 2.2V
VCC_DC2 = 2.3V
D5
LED
C11 100nF
R17
0R
+
C9
2.2uF/16V
P21
P22
R9
0R
R5
39R
R10
1M
R11
1M
R12
1M
11
10
1
U5
ADNS-2080
MOSI
C2
4.7uF/10V
CS
MISO
VDDIO
MSCK
MOTION
14
P25
P28
P27
P26
R7
1M
R6
1M
R0
VCC_DC1 VCC_DC2
U2
TPS61220
P6
C4
10uF/50V
L2 4.7uH
R4
1M1
R3
300k
P7
U1
TPS61220
P24
C5
10uF/50V
C1
100nF
L1 4.7uH
R1
1M3
R2
453k
P16
C6
100nF
C7
100nF
C8
4.7uF/10V
C10
4.7uF/10V
C3
100nF
C12
4.7uF/10V
C13
4.7uF/10V
Note:
Option 1:
R5 = 39R
Option 2:
R5 = 66R
8
Figure 8b. Schematic diagram of the RF module (to be attached to the mouse mainboard PCB)
AFFINEX
U1
NRF24LE1
C1
100nF
C3
100nF
C4
33nF
C5
100nF
X1
16MHz
C6
22pF
C7
22pF
R1
22K
C2
100nF
L2
6.8nH
L1
4.7nH
L3
6.8nH
C8
1.5pF
C9
2.2nF
C11
1pF
C12
1.8pF
AT1
ANTENNA
RESET
ANT1
ANT2
VDD_PA
PROG
MSCK
COM
MOTION
R1
R2
S1
S2
S3
S4
R0
CS
MISO
MOSI
ZA
ZB
P1
P5
P6
P7
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P28
P29
P32
VDD
GND1
GND2
1
GND3
GND4
GND5
GND6
GND7
GND8
GND9
C13
5pF
C14
5pF
C15
5pF
C16
5pF
9
Figure 8c. Schematic diagram of the dongle
AFFINEX
X1
16MHz
C12
10uF
nRF24LU1+
U1
J1
USB Type A
Antenna
PROG
SCK
MOSI
MISO
CSN
Prog
L4
3.9nH
0402
R3 22R
R4 22R
R6 10R
R7
10k
R5
10k
R2 22k
C8
10nF
C11
100nF
C7
10nF
C1
22pF
C2
22pF
C10 33nF
C9 33nF
C3
2.2nF
C4
4.7pF
C6
1.0pF
C13
2.2pF
C5
1.0pF
L3
6.8nH
L1
5.6nH
L2
6.8nH
J2
Header 5
10
Table 2. Recommended Operating Condition
Parameter Symbol Min Typ. Max Units Notes
Operating Temperature TA0 40 °C
Power Supply Voltage VDDA 2.1 2.2 3.3 V
VDDIO 1.7 1.8 3.3 V
Power Supply Rise Time TRT 0.15 20 ms 0 to VDDA min/VDDIO min
Supply Noise (Sinusoidal) VNA 100 mVp-p 10 kHz –50 MHz
Serial Port Clock Frequency fSCLK 1 MHz 50% duty cycle
Distance from Lens Reference
Plane to Tracking Surface (Z)
Z 2.3 2.4 2.5 mm
Speed 1 S 0 30 ips At default frame rate
Acceleration a 20 g At run mode
Load Capacitance Cout 100 pF SDIO and MOTION
Note:
1. For higher than 500 dpi setting, use 12-bit motion reporting to achieve the maximum speed
Design Considerations for Improved ESD Performance
For improved electrostatic discharge performance, typical
creepage and clearance distance are shown in the table
below. Assumption: base plate construction is as per the
Avago Technologies supplied IGES file and ADNS-5110-
001 lens. Note that the lens material is polycarbonate or
polysty rene HH30. Therefore, cyanoacrylate based adhe-
sives or other adhesives that may damage the lens should
NOT be used.
Typical Distance (mm)
Creepage 16.0
Clearance 2.0
Regulatory Requirements
• Passes FCC B and worldwide analogous emission limits
when assembled into a mouse with shielded cable and
following Avago Technologies recommendations.
• UL flammability level UL94 V-0.
Table 1. Absolute Maximum Ratings
Parameter Symbol Minimum Maximum Units Notes
Storage Temperature TS-40 85 °C
Operating Temperature TA-15 55 °C
Lead Solder Temperature VO260 °CFor 10 seconds, 1.6 mm below seating plane.
Supply Voltage VDDA -0.5 3.6 V
VDDIO 3.6 V
ESD 2 kV All pins, human body model JESD22-A114
Input Voltage VIN -0.5 3.6 V All I/O pins
11
Table 3. AC Electrical Specifications
Electrical characteristics over recommended operating conditions. Typical values at 25 °C, VDDA = 2.2 V, VDDIO = 1.8 V.
Parameter Symbol Min. Typ. Max. Units Notes
Motion Delay after Reset tMOT-RST 50 ms From RESET register write to valid motion
Forced Rest Enable tREST-EN 1 s From Rest Mode(RM) bits set to target rest
mode
Wake from Forced Rest tREST-DIS 1 s From Rest Mode(RM) bits cleared to valid
motion
Power Down tPD 50 ms From PD active (when bit 1 of register
0x0d is set) to low current
Wake from Power Down tWAKEUP 55 ms Through RESET register 0x3a.
From PD inactive to valid motion
SDIO Rise Time tr-SDIO 60 200 ns CL = 100 pF
SDIO Fall Time tf-SDIO 40 200 ns CL = 100 pF
SDIO Delay after SCLK tDLY-SDIO 120 ns From SCLK falling edge to SDIO data valid,
no load conditions
SDIO Hold Time thold-SDIO 250 1/fSCLK ns Data held until next falling SCLK edge
SDIO Timeout After Failure ttimeout-SDIO 50 ms Quiet time needed for the SPI block to
reset when it fails
SPI Time between Write
Commands
tSWW 30 μsFrom rising SCLK for last bit of the first
data byte, Commands to rising SCLK for
last bit of the second data byte
SPI Time between Write
and Read Commands
tSWR 20 μsFrom rising SCLK f or last bit of the first
data byte, to rising SCLK for last bit of the
second address byte
SPI Time between Read and
Subsequent Commands
tSRW
tSRR
250 ns From rising SCLK for last bit of the first
data byte, to falling SCLK for the first bit
of the next address
SPI Read Address-
Data Delay
tSRAD 4μsFrom rising SCLK for last bit of the address
byte, to falling SCLK for first bit of data
being read
Transient Supply Current IDDT 60 mA Max supply current during a VDDA ramp
from 0 to VDDA with min 150 μs and max
20 ms rise time. (Does not include
charging currents for bypass capacitors.)
12
Table 4. DC Electrical Specifications
Electrical characteristics over recommended operating conditions. Typical values at 25 °C, VDDA = 2.2 V, VDDIO = 1.8 V,
VDDLED = 2.2 V, IRLED HSDL-4261, ILED DC = 5mA.
Parameter Symbol Min Typ. Max Units Notes
DC Supply Current in
Various Mode
IDD_AVG 1.5 mA Average sensor current at max frame rate.
No load on SDIO
Average LED current at max frame rate. No
load on SDIO
IDD_REST1 110 μA
IDD_REST2 34 μA
IDD_REST3 18 μA
IDDLED_AVG 0.4 mA
IDDLED_REST1 66 μA
IDDLED_REST2 15 μA
IDDLED_REST3 4μA
Power Down Current 10 μA
Input Low Voltage VIL 0.3*
VDDIO
V SCLK, SDIO
Input High Voltage VIH 0.7*
VDDIO
V SCLK, SDIO
Input Hysteresis VI_HYS 200 mV SCLK, SDIO
Input Leakage Current Ileak ±1±10 μAVin = VDDIO or 0 V
Output Low Voltage VOL 0.45 V Iout = 1 mA, SDIO, MOTION
Output High Voltage VOH VDDIO
-0.45
V Iout = -1 mA, SDIO, MOTION
Input Capacitance Cin 50 pF SDIO, SCLK
13
Synchronous Serial Port
The synchronous serial port is used to set and read pa-
rameters in the ADNS-2080, and to read out the motion
information. The port is a two wire serial port. The host
micro-con troller always initiates communication; the
ADNS-2080 never initiates data transfers. SCLK and SDIO
may be driven directly by a micro-controller.
The lines that comprise the SPI port:
SCLK: Clock input. It is always generated by the master
(the micro-controller).
SDIO: Input/Output data.
Power Management Modes
The ADNS-2080 has three power-saving modes. Each
mode has a different motion detection period with its re-
spective response time to mouse motion. Response Time
is the time taken for the sensor to ‘wake up’ from rest mode
when motion is detected. When left idle, the sensor auto-
matically changes or downshift from Run mode to Rest1,
to Rest2 and finally to Rest3 which consumes the least cur-
rent. Do note that current consumption is the lowest at
Rest3 and highest at Rest1, however time required for sen-
sor to respond to motion from Rest1 is the shortest and
longest from Rest3. Downshift Time is the elapsed time
(under no motion condition) from current mode to the
next mode for example, it takes 10s for the sensor that is
in Rest1 to change to Rest2. The typical response time and
downshift time for each mode is shown in the following
table. However, user can change the default time setting
for each mode via register 0x0e through 0x13.
Mode
Response Time
(Typical)
Downshift Time
(Typical)
Rest 1 20 ms <1 s
Rest 2 100 ms 10 s
Rest 3 500 ms 600 s
Note:
These default timings are subject to changes after characterization.
Another feature in ADNS-2080 that can be used to opti-
mize the power consumption of the optical mouse system
is the Motion Interrupt Output or MOTION pin (pin 3). It
allows the host controller to be in sleep mode (or lowest
operating current mode) when there is no motion detect-
ed after some time instead of consistently be in active
mode and polling motion data from the sensor. When
motion is detected, the sensor will send the motion inter-
rupt signal through pin 3 to the controller to wake it up
from sleep mode to resume its motion detection routine
for navigation position and direction update.
MOTION Detection Routine
Typically in the motion detection routine, MCU will poll
the sensor for valid motion data by checking on the
MOTION_ST bit in MOTION_ST register. If MOTION_ST bit
is set, motion data in DELTA registers is valid and ready to
be read by the MCU. For 8-bit motion reporting the DELTA
registers are DELTA_X and DELTA_Y and for 12-bit motion
reporting the DELTA registers are DELTA_X, DELTA_Y and
DELTA_XY_HIGH.
MOTION Function
MOTION output signal (pin 3) can be used as interrupt in-
put to the microcontroller of the mouse to trigger the con-
troller to read the motion data from the sensor whenever
there is motion detected by the sensor. The MOTION sig-
nal can be configured to be level or edge triggered, active
high or low by setting the bits in MOTION_CTRL register.
For active high level-triggered configuration, the
MOTION pin level will be driven high as long the MOTION
bit in register 0x02 is set and there is motion data in DELTA
registers ready to be read by the microcontroller. Once
all the motion data has been read, DELTA registers value
become zero, MOTION bit is reset and the MOTION pin
level is driven low.
For active high edge-triggered configuration, a pulse of
380ns (typical) will be sent through the MOTION pin when
there is motion detected by the sensor during rest modes.
The pulse can be used as interrupt input to activate the
microcontroller from its sleep mode to enter into run
mode to start polling the sensor for motion data by moni-
toring MOTION_ST bit (set whenever there is valid motion
data) in MOTION register (0x02) and reading DELTA regis-
ters until MOTION_ST bit is reset.
14
Write Operation
Write operation, defined as data going from the micro-controller to the ADNS-2080, is always initiated by the micro-
controller and consists of two bytes. The first byte contains the address (seven bits) and has a “1” as its MSB to indicate
write sequence. The second byte contains the data. The ADNS-2080 reads SDIO on rising edges of SCLK
SDIO setup and hold time during write operation
1
1
23456 7 8 9 10 11 12 13 14 15 16 21
D0
D5
D6
D7
A0
A1
A2
A3
A4
A5
A61 A6
D4D3D2D1
SCLK
MOSI
MOSI DRIVEN BY MICRO-CONTROLLER
MISO
1
1
23456 7 8 9 10 11 12 13 14 15 16 21
D0
D5
D6
D7
A0
A1
A2
A3
A4
A5
A61 A6
D4D3D2D1
SCLK
SDIO
SDIO DRIVEN BY MICRO-CONTROLLER
tsetup-write
thold-write
SCLK
SDIO
SDIO delay and hold time during read operation
Read Operation
A read operation, defined as data going from the slave to the microcontroller, is always initiated by the microcontroller
and consists of two bytes. The first byte contains the address, is sent by the microcontroller over slave SDIO, and has a “0”
as its MSB to indicate data direction. The second byte contains the data and is driven by the slave over SDIO. The sensor
outputs data bits on falling edges of SCLK.
1 2 3 4 5 6 7 8
SCLK
Cycle #
SCLK
SDIO 0 A6A5A4A3A2A1A0
9 10 11 12 13 14 15 16
D6D5D4D3D2D1D0
D7
tSRAD DELAY
SCLK
SDIO D0
tHOLD-READ
tDLY-READ
Note: The 500 ns minimum high state of SCLK is also the minimum
SDIO data hold time of the ADNS-2080. Since the falling edge of SCLK is
actually the start of the next read or write command, the ADNS-2080 will
hold the state of data on SDIO until the falling edge of SCLK.
15
Timing between Write and Read Commands
If the rising edge of SCLK for the last address bit of the read command occurs before the required delay (tSWR), the write
command may not complete correctly.
Timing between Read and Subsequent Write or Read Commands
During a read operation SCLK should be delayed at least tSRAD after the last address data bit to ensure that the ADNS-2080
has time to prepare the requested data. The falling edge of SCLK for the first address bit of either the read or write com-
mand must be at least tSRR or tSRW after the last SCLK rising edge of the last data bit of the previous read operation.
Motion Burst Timing
SCLK
tSWR
WRITE OPERATION
ADDRESS DATA
NEXT READ OPERATION
ADDRESS
• • •
• • •
SCLK
tSRAD
READ OPERATION
ADDRESS
NEXT READ
or WRITE OPERATION
ADDRESS
• • •
• • •
tSRW & tSRR
DATA
MOTION_BURST REGISTER ADDRESS READ FIRST BYTE
FIRST READ OPERATION READ SECOND BYTE READ THIRD BYTE
SCLK
• • •
• • •
tSRAD
Required Timing between Read and Write Commands
There are minimum timing requirements between read and write commands on the serial port.
Timing between Two Write Commands
If the rising edge of the SCLK for the last data bit of the second write command occurs before the required delay (tSWW),
then the first write command may not complete correctly.
SCLK
tSWW
WRITE OPERATION
ADDRESS DATA
WRITE OPERATION
ADDRESS DATA
16
Burst Mode Operation
Burst mode is a special serial port operation mode that
may be used to reduce the serial transaction time for a
motion read. The speed improvement is achieved by con-
tinuous data clocking to or from multiple registers with-
out the need to specify the register address, and by not
requiring the normal delay period between data bytes.
Burst mode is initiated by reading the MOTION_BURST
register (0x63). The ADNS-2080 will respond with the con-
tents of the DELTA_X, DELTA_Y, SQUAL, SHUT_HI, SHUT_LO,
and PIX_MAX and PIX_ACCUM registers in that order. The
default value in BURST_READ_FIRST register (0x42) is the
address of the DELTA_X register. The address that is speci-
fied in the BURST_READ_FIRST register can be changed
to address 0x00 – 0x02 (PROD_ID – MOTION_ST) or 0x05
– 0x08 (SQUAL – PIX_MAX). In 12-bit motion reporting
there will be an extra content in DELTA_XY_HIGH (register
0x0c), to be read out in the order of DELTA_X, DELTA_Y,
DELTA_XY_HIGH, SQUAL, SHUT_HI, SHUT_LO, PIX_MAX
and PIX_ACCUM. The rest of the burst mode operation is
the same as 8-bit motion reporting.
The default value in BURST_LAST_READ register (0x44)
is the address of PIX_ACCUM register. This last address
setting must be larger than the first address setting,
address 0x01-0x02 (REV_ID - MOTION_ST), or 0x04 – 0x09
(DELTA_Y – PIX_ACCUM) or 0x0c (DELTA_XY_HIGH) if
12-bit motion reporting is set.
The burst read must continue until the last specified
address in order for the IO to be back to normal mode.
After reading the MOTION_BURST address (0x63), the
microcontroller must wait tSRAD before starting to read
the continuous data bytes. All data bits can be read with
no delay between bytes by driving SCLK at the normal
rate. The data are latched into the output buffer after the
last address bit is received.
Reset
During power-up, the ADNS-2080 does not need a power
on reset as there is an internal circuitry that performs
power on reset in the sensor. However it can be reset
by writing 0x5a to register 0x3a. A full reset will thus be
executed and any register settings must be reloaded.
Power Down
The ADNS-2080 can be set to Power Down mode by writ-
ing 0x02 to register 0x0d to disable the sensor. In addition,
the SPI port should not be accessed during power down.
The table below shows the state of various pins during
power down. To exit Power Down, write 0x5a to register
0x3a to reset the sensor in order to wake it up. A full reset
will thus be executed. Wait tWAKEUP before accessing the
SPI port. Any register settings must then be reloaded.
Pin During Power Down
MOTION Undefined
SCLK Functional*
SDIO Functional*
XY_LED Low current
Notes:
* Reading of registers should only be performed after exiting from the
power down mode. Any read operation during power down will not
reflect the actual data of the registers.
17
Registers
The ADNS-2080 registers are accessible via the serial port. The registers are used to read motion data and status as well
as to set the device configuration.
Address Register Name Register Description Read/Write Default Value
0x00 PROD_ID Product ID R 0x2A
0x01 REV_ID Revision ID R 0x00
0x02 MOTION_ST Motion Status R 0x00
0x03 DELTA_X Lower byte of Delta_X R 0x00
0x04 DELTA_Y Lower byte of Delta_Y R 0x00
0x05 SQUAL Squal Quality R 0x00
0x06 SHUT_HI Shutter Open Time (Upper 8-bit) R 0x00
0x07 SHUT_LO Shutter Open Time (Lower 8-bit) R 0x64
0x08 PIX_MAX Maximum Pixel Value R 0xD0
0x09 PIX_ACCUM Average Pixel Value R 0x80
0x0a PIX_MIN Minimum Pixel Value R 0x00
0x0b PIX_GRAB Pixel Grabber R/W 0x00
0x0c DELTA_XY_HIGH Upper 4 bits of Delta X and Y displacement R 0x00
0x0d MOUSE_CTRL Mouse Control R/W 0x01
0x0e RUN_DOWNSHIFT Run to Rest1 Time R/W 0x08
0x0f REST1_PERIOD Rest1 Period R/W 0x01
0x10 REST1_DOWNSHIFT Rest1 to Rest2 Time R/W 0x1f
0x11 REST2_PERIOD Rest2 Period R/W 0x09
0x12 REST2_DOWNSHIFT Rest2 to Rest3 Time R/W 0x2f
0x13 REST3_PERIOD Rest3 Period R/W 0x31
0x22 PERFORMANCE Performance R/W 0x00
0x3a RESET Reset W 0x00
0x3f NOT_REV_ID Inverted Revision ID R 0xff
0x40 LED_CTRL LED Control R/W 0x00
0x41 MOTION_CTRL Motion Control R/W 0x40
0x42 BURST_READ_FIRST Burst Read Starting Register R/W 0x03
0x44 BURST_READ_LAST Burst Read Ending Register R/W 0x09
0x45 REST_MODE_CONFIG Rest Mode Configuration R/W 0x00
0x63 MOTION_BURST Burst Read R 0x00
18
PROD_ID Address: 0x00
Product ID Register
Access: Read Reset Value: 0x2A
Bit76543210
Field PID7 PID6 PID5 PID4 PID3 PID2 PID1 PID0
Data Type: 8-Bit unsigned integer
USAGE: This register contains a unique identification assigned to the ADNS-2080. The value in this register does not
change; it can be used to verify that the serial communications link is functional.
REV_ID Address: 0x01
Product ID Register
Access: Read Reset Value: 0x00
Bit76543210
Field RID7 RID6 RID5 RID4 RID3 RID2 RID1 RID0
Data Type: 8-Bit unsigned integer
USAGE: This register contains the IC revision. It is subject to change when new IC versions are released.
MOTION_ST Address: 0x02
Motion Status Register
Access: Read/Write Reset Value: 0x00
Bit7 6543210
Field MOTION_ST RSVD RSVD RSVD RSVD RSVD RSVD RSVD
Data Type: Bit field.
USAGE: Register 0x02 allows the user to determine if motion has occurred since the last time it was read. If the MOTION_
ST bit is set, then the user should read registers 0x03 (DELTA_X) and 0x04 (DELTA_Y) to get the accumulated
motion data. Read this register before reading the DELTA_X and DELTA_Y registers. Writing any data into this
register clears MOTION_ST bit, DELTA_X and DELTA_Y registers. However the written data byte will not be
saved.
Bit Field Name Description
7 MOTION_ST Motion detected since last report
0 = No motion (default)
1 = Motion occurred, data in DELTA_X and DELTA_Y registers ready to be
read
6-0 RSVD Reserved
19
DELTA_X Address: 0x03
X Displacement Register
Access: Read Reset Value: 0x00
Bit76543210
Field X7 X6 X5 X4 X3 X2 X1 X0
Data Type: Eight bit 2’s complement number.
USAGE: X-axis movement in counts since last report. Absolute value is determined by resolution. Reading this register
clears the content of this register.
00 01 02 7E 7F
+127+126+1 +2
FFFE8281
0-1-2-126-127
Motion
Delta_X
00 01 02 7E 7F
+127+126+1 +2
FFFE8180
0-1-2-127-128
Motion
Delta_X
NOTE: Avago RECOMMENDS that registers 0x03, 0x04 and 0x0C be read consecutively in 12-bit motion reporting.
DELTA_Y Address: 0x04
Y Displacement Register
Access: Read Reset Value: 0x00
Bit76543210
Field Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
Data Type: Eight bit 2’s complement number.
USAGE: Y-axis movement in counts since last report. Absolute value is determined by resolution. Reading this register
clears the content of this register.
00 01 02 7E 7F
+127+126+1 +2
FFFE8281
0-1-2-126-127
Motion
Delta_Y
00 01 02 7E 7F
+127+126+1 +2
FFFE8180
0-1-2-127-128
Motion
Delta_Y
NOTE: Avago RECOMMENDS that registers 0x03, 0x04 and 0x0C be read consecutively in 12-bit motion reporting.
20
Figure 14. Mean squal vs. Z (White Paper)
SQUAL Address: 0x05
Squal Quality Register
Access: Read Reset Value: 0x00
Bit76543210
Field SQ7 SQ6 SQ5 SQ4 SQ3 SQ2 SQ1 SQ0
Data Type: Upper 8 bits of a 9-bit unsigned integer.
USAGE: SQUAL (Surface Quality) is a measure of the number of valid features visible by the sensor in the current
frame.
The maximum SQUAL register value is 180. Since small changes in the current frame can result in changes in
SQUAL, variations in SQUAL when looking at a surface are expected. The graph below shows 250 sequentially
acquired SQUAL values, while a sensor was moved slowly over white paper. SQUAL is nearly equal to zero, if
there is no surface below the sensor. SQUAL is typically maximized when the navigation surface is at the opti-
mum distance from the imaging lens (the nominal Z-height).
Figure 9. Squal values (white paper)
0
10
20
30
40
50
60
1 55 109 163 217 271 325 379 433 487 541 595 649 703 757 811 865
Count
Squal
Squal value
Mean SQUAL vs Z
-10
0
10
20
30
40
50
60
-0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
Delta from Nominal Focus (mm)
Squal count
Avg-3sigma
Avg
Avg+3sigma
21
SHUT_HI Address: 0x06
Shutter Open Time (Upper 4-bits) Register
Access: Read Reset Value: 0x01
Bit76543210
Field Reserved Reserved Reserved Reserved S11 S10 S9 S8
SHUT_LO Address: 0x07
Shutter Open Time (Lower 8-bits) Register
Access: Read Reset Value: 0x64
Bit76543210
Field S7 S6 S5 S4 S3 S2 S1 S0
Data Type: Twelve bit unsigned integer.
USAGE: Units are in clock cycles. Read SHUT_HI first, then SHUT_LO. They should be read consecutively. The shutter is
adjusted to keep the average and maximum pixel values within normal operating ranges. The shutter value is
automatically adjusted.
PIX_MAX Address: 0x08
Maximum Pixel Value Register
Access: Read Reset Value: 0x00
Bit76543210
Field MP7 MP6 MP5 MP4 MP3 MP2 MP1 MP0
Data Type: Eight-bit number.
USAGE: Store the highest pixel value in current frame. Minimum value = 0, maximum value = 254. The highest pixel
value may vary with different frame.
PIX_ACCUM Address: 0x09
Accumulated Pixel Value Register
Access: Read Reset Value: 0x00
Bit76543210
Field AP7 AP6 AP5 AP4 AP3 AP2 AP1 AP0
Data Type: High 8-bits of an unsigned 17-bit integer.
USAGE: This register stores the accumulated pixel value of the last image taken. This register can be used to find the
average pixel value, where Average Pixel = (register value AP[7:0]) * 1.058.
The maximum accumulated value is 122936 but only bits [16:9] are reported, therefore the maximum register
value is 240. The minimum is 0. The PIX_ACCUM value may vary with different frame.register value is 240. The
minimum is 0. The PIX_ACCUM value may vary with different frame.
22
PIX_MIN Address: 0x0a
Minimum Pixel Value Register
Access: Read Reset Value: 0x00
Bit76543210
Field MP7 MP6 MP5 MP4 MP3 MP2 MP1 MP0
Data Type: Eight-bit number.
USAGE: Store the lowest pixel value in current frame. Minimum value = 0, maximum value = 254. The minimum pixel
value may vary with different frame.
PIX_GRAB Address: 0x0b
Pixel Grabber Register
Access: Read Reset Value: 0x00
Bit76543210
Field PG_VALID PG6 PG5 PG4 PG3 PG2 PG1 PG0
Data Type: Eight bit word.
USAGE: The pixel grabber captures 1 pixel per frame. Bit-7 (MSB) of this register will be set to indicate that the 7-bit pixel
data (PG[6:0]) is valid for grabbing. In 22x22 pixel arrays, it will take 484 read operations to grab all the pixels to
form the complete image.
Bit(s) Field Name Description
7 PG_VALID Pixel Grabber Valid
6:0 PG[6:0] Pixel Data
NOTE: Any write operation into this register will reset the grabber to origin (pixel 0 position). The sensor should not
be moved before the 484 read operations are completed to ensure original data is grabbed to produce good
(uncorrupted) image.
22X22 Pixel Array Address Map – (View from top of sensor)
Positive Y
Positive X
Top X-ray View of Mouse
Pin 1
Left
Button
Right
Button
LED
8
7
6
5
4
3
2
1
462 440 418 396 374 352 330 308 286 264 242 220 198 176 154 132 110 88 66 44 22 0 First
463 441 419 397 375 353 331 309 287 265 243 221 199 177 155 133 111 89 67 45 23 1
464 442 420 398 376 354 332 310 288 266 244 222 200 178 156 134 112 90 68 46 24 2
465 443 421 399 377 355 333 311 289 267 245 223 201 179 157 135 113 91 69 47 25 3
466 444 422 400 378 356 334 312 290 268 246 224 202 180 158 136 114 92 70 48 26 4
467 445 423 401 379 357 335 313 291 269 247 225 203 181 159 137 115 93 71 49 27 5
468 446 424 402 380 358 336 314 292 270 248 226 204 182 160 138 116 94 72 50 28 6
469 447 425 403 381 359 337 315 293 271 249 227 205 183 161 139 117 95 73 51 29 7
470 448 426 404 382 360 338 316 294 272 250 228 206 184 162 140 118 96 74 52 30 8
471 449 427 405 383 361 339 317 295 273 251 229 207 185 163 141 119 97 75 53 31 9
472 450 428 406 384 362 340 318 296 274 252 230 208 186 164 142 120 98 76 54 32 10
473 451 429 407 385 363 341 319 297 275 253 231 209 187 165 143 121 99 77 55 33 11
474 452 430 408 386 364 342 320 298 276 254 232 210 188 166 144 122 100 78 56 34 12
475 453 431 409 387 365 343 321 299 277 255 233 211 189 167 145 123 101 79 57 35 13
476 454 432 410 388 366 344 322 300 278 256 234 212 190 168 146 124 102 80 58 36 14
477 455 433 411 389 367 345 323 301 279 257 235 213 191 169 147 125 103 81 59 37 15
478 456 434 412 390 368 346 324 302 280 258 236 214 192 170 148 126 104 82 60 38 16
479 457 435 413 391 369 347 325 303 281 259 237 215 193 171 149 127 105 83 61 39 17
480 458 436 414 392 370 348 326 304 282 260 238 216 194 172 150 128 106 84 62 40 18
481 459 437 415 393 371 349 327 305 283 261 239 217 195 173 151 129 107 85 63 41 19
482 460 438 416 394 372 350 328 306 284 262 240 218 196 174 152 130 108 86 64 42 20
Last 483 461 439 417 395 373 351 329 307 285 263 241 219 197 175 153 131 109 87 65 43 21
23
DELTA_XY_HIGH Address: 0x0c
Upper 4 bits Delta-X/Y Displacement Register
Access: Read Reset Value: 0x00
Bit76543210
Field DELTA_X_
HI3
DELTA_X_
HI2
DELTA_X_
HI1
DELTA_X_
HI0
DELTA_Y_
HI3
DELTA_Y_
HI2
DELTA_Y_
HI1
DELTA_Y_
HI0
Data Type: Eight bit 2’s complement number.
USAGE: Concatenate the values to have a 12-bit reporting for the motion.
X motion = {DELTA_XY_HIGH[7:4], DELTA_X} , Y motion = DELTA_XY_HIGH[3:0], DELTA_Y}
Bit(s) Field Name Description
7:4 DELTA_X_HI Upper 4 bits of DELTA_X displacement for 12-bit reporting
3:0 DELTA_Y_HI Upper 4 bits of DELTA_Y displacement for 12-bit reporting
NOTE: Avago RECOMMENDS that registers 0x03, 0x04 and 0x0C be read consecutively in 12-bit motion reporting.
MOUSE_CTRL Address: 0x0d
Mouse Control Register
Access: Read/Write Reset Value: 0x01
Bit7 6543210
Field BIT_
REPORTING
RSVD RES_EN RES2 RES1 RES0 PD RES_D
Data Type: Bit field.
USAGE: Resolution and chip reset information can be accessed or to be edited by this register.
Bit(s) Field Name Description
7 BIT_REPORTING 0x0: 8-bit motion reporting
0x1: 12-bit motion reporting. Read register 0x03, 0x04 and 0x0c.
6 RSVD Reserved
5 RES_EN Enable resolution settings set on MOUSE_CTRL [4:2]
4:2 RES [2:0] Resolution
0x0: 1000 dpi (default)
0x1: 250 dpi
0x2: 500 dpi
0x3: 1250 dpi
0x4: 1500 dpi
0x5: 1750 dpi
0x6: 2000 dpi
1 PD Power Down
0 RES_D 0x0: 500 dpi
0x1: 1250 dpi (default)
NOTE: Setting MOUSE_CTRL [5] bit to ‘1’ will supersede and ignore MOUSE_CTRL [0] setting.
24
RUN_DOWNSHIFT Address: 0x0e
Run to Rest1 Time Register
Access: Read/Write Reset Value: 0x08
Bit76543210
Field RUD7 RUD6 RUD5 RUD4 RUD3 RUD2 RUD1 RUD0
Data Type: Eight bit number.
USAGE: This register sets the Run to Rest1 mode downshift time. The time is the value of this register multiply by 8 times
of position mode period (default is 4ms).
Default downshift time = 8 * 8 * 4 = 256 ms
NOTE: Writing into this register when the sensor itself is operating in this rest mode may result in unexpected behavior
of the sensor. To avoid this from happening, below commands should be incorporated prior and after the write
command into this register.
w 22 40 -> write 0x40H into register 0x22H prior to writing into this register
w 0e XX -> writing into this register
w 22 00 -> write 0x00H into register 0x22H after writing into this register
REST1_PERIOD Address: 0x0f
Rest1 Period Register
Access: Read/Write Reset Value: 0x01
Bit76543210
Field RIP7 RIP6 RIP5 RIP4 RIP3 RIP2 RIP1 RIP0
Data Type: Eight bit number.
USAGE: This register sets the Rest1 period. Period = (register value R1P [7:0] +1) x 10ms (typical slow clock period). Min
value for this register is 0x01. Max value is 0xFD.
NOTE: Writing into this register when the sensor itself is operating in this rest mode may result in unexpected behavior
of the sensor. To avoid this from happening, below commands should be incorporated prior and after the write
command into this register.
w 22 40 -> write 0x40H into register 0x22H prior to writing into this register
w 0f XX -> writing into this register
w 22 00 -> write 0x00H into register 0x22H after writing into this register
25
REST1_DOWNSHIFT Address: 0x10
Rest1 to Rest2 Downshift Time Register
Access: Read/Write Reset Value: 0x1f
Bit76543210
Field R1D7 R1D6 R1D5 R1D4 R1D3 R1D2 R1D1 R1D0
Data Type: Eight bit number.
USAGE: This register sets the Rest1 to Rest2 mode downshift time. Time = (register value R1D [7:0]) x (Rest1 period) x 16.
Min value for this register is 0x01.
NOTE: Writing into this register when the sensor itself is operating in this rest mode may result in unexpected behavior
of the sensor. To avoid this from happening, below commands should be incorporated prior and after the write
command into this register.
w 22 40 -> write 0x40H into register 0x22H prior to writing into this register
w 10 XX -> writing into this register
w 22 00 -> write 0x00H into register 0x22H after writing into this register
REST2_PERIOD Address: 0x11
Rest2 Period Register
Access: Read/Write Reset Value: 0x09
Bit76543210
Field R2P7 R2P6 R2P5 R2P4 R2P3 R2P2 R2P1 R2P0
Data Type: Eight bit number.
USAGE: This register sets the Rest2 period. Period = (register value R2P [7:0] +1) x 10ms (typical slow clock period). Min
value for this register is 0x01. Max value is 0xFD.
NOTE: Writing into this register when the sensor itself is operating in this rest mode may result in unexpected behavior
of the sensor. To avoid this from happening, below commands should be incorporated prior and after the write
command into this register.
w 22 40 -> write 0x40H into register 0x22H prior to writing into this register
w 11 XX -> writing into this register
w 22 00 -> write 0x00H into register 0x22H after writing into this register
26
REST2_DOWNSHIFT Address: 0x12
Rest2 to Rest3 Downshift Time Register
Access: Read/Write Reset Value: 0x2f
Bit76543210
Field R2D7 R2D6 R2D5 R2D4 R2D3 R2D2 R2D1 R2D0
Data Type: Eight bit number.
USAGE: This register sets the Rest1 to Rest2 mode downshift time. Time = (register value R2D [7:0] ) x (Rest2 period) x
128. Min value for this register is 0x01.
NOTE: Writing into this register when the sensor itself is operating in this rest mode may result in unexpected behavior
of the sensor. To avoid this from happening, below commands should be incorporated prior and after the write
command into this register.
w 22 40 -> write 0x40H into register 0x22H prior to writing into this register
w 12 XX -> writing into this register
w 22 00 -> write 0x00H into register 0x22H after writing into this register
REST3_PERIOD Address: 0x13
Rest3 Period Register
Access: Read/Write Reset Value: 0x31
Bit76543210
Field R3P7 R3P6 R3P5 R3P4 R3P3 R3P2 R3P1 R3P0
Data Type: Eight bit number.
USAGE: This register sets the Rest3 period. Period = (register value R3P [7:0] +1) x 10ms (typical slow clock period). Min
value for this register is 0x01. Max value is 0xFD.
NOTE: Writing into this register when the sensor itself is operating in this rest mode may result in unexpected behavior
of the sensor. To avoid this from happening, below commands should be incorporated prior and after the write
command into this register.
w 22 40 -> write 0x40H into register 0x22H prior to writing into this register
w 13 XX -> writing into this register
w 22 00 -> write 0x00H into register 0x22H after writing into this register
27
PERFORMANCE Address: 0x22
Performance Register
Access: Read/Write Reset Value: 0x00
Bit7 6543210
Field RSVD FORCE3 FORCE1 FORCE0 RSVD RSVD RSVD RSVD
Bit(s) Field Name Description
7 RSVD Reserved
6:4 FORCE[2:0] force modes
0x0: Normal operation.
0x1: force mode rest 1.
0x2: force mode rest 2.
0x3: force mode rest 3.
0x4: force mode run 1.
0x5: force mode run 2.
0x6: force mode idle.
3:0 RSVD Reserved
RESET Address: 0x3a
Reset Register
Access: Write Reset Value: 0x00
Bit76543210
Field RST7 RST6 RST5 RST4 RST3 RST2 RST1 RST0
Data Type: Eight bit unsigned integer.
USAGE: This register is used as chip reset by writing 0x5a into this register.
NOT_REV_ID Address: 0x3f
Inverted Revision ID Register
Access: Read Reset Value: 0xff
Bit76543210
Field RRID7 RRID6 RRID5 RRID4 RRID3 RRID2 RRID1 RRID0
Data Type: Eight bit unsigned integer.
USAGE: This register contains the inverse of the revision ID which is located at register 0x01.
28
LED_CTRL Address: 0x40
LED Control Register
Access: Read/Write Reset Value: 0x00
Bit7 6543210
Field RSVD RSVD RSVD RSVD LCOF RSVD RSVD RSVD
Data Type: Eight bit unsigned integer.
USAGE: This register is used to control the LED operating mode.
Bit(s) Field Name Description
7:4 RSVD Reserved
3LCOF 0 : Normal operation (default)
1 : LED Continuous Off
2:0 RSVD Reserved
MOTION_CTRL Address: 0x41
Motion Control Register
Access: Read/Write Reset Value: 0x40
Bit7 6543210
Field MOT_A MOT_S RSVD RSVD RSVD RSVD RSVD RSVD
Data Type: Eight bit unsigned integer.
USAGE: This register is used to set the feature of MOTION interrupt output. If MOT_S bit is clear, the MOTION pin is level-
sensitive. With active low (MOT_A bit is clear) level-sensitive configuration, the MOTION pin will be driven low
when there is motion detected indicating there is motion data in DELTA_X and DELTA_Y registers. The mouse
microcontroller can read MOTION_ST register, DELTA_X register, and then DELTA_Y register sequentially. After
all the motion data has been read, DELTA_X and DELTA_Y registers will be zero, the MOTION pin will be driven
high by the sensor.
If MOT_S is set, the MOTION pin is edge sensitive. If MOT_A is also set, it means active high or rising edge
triggered. Whenever there is motion detected by the sensor, a pulse (~380ns) will be sent out through this
pin. This pulse can be used to trigger or wake the controller up from its sleep mode to read motion data from
the sensor. The controller can then read MOTION_ST register, DELTA_X register, and then DELTA_Y register
sequentially. (Refer to Motion Function for more information).
Bit(s) Field Name Description
7 MOT_A MOTION Active
0 : LOW (default)
1 : HIGH
6 MOT_S MOTION Sensitivity
0 : Level sensitive
1 : Edge sensitive (default)
5:0 RSVD Reserved
29
BURST_READ_FIRST Address: 0x42
Burst Read Starting Address Register
Access: Read/Write Reset Value: 0x03
Bit7 6543210
Field BM7 BM6 BM5 BM4 BM3 BM2 BM1 BM0
Data Type: Eight bit unsigned integer.
USAGE: This register provides the starting register address the sensor will read during Burst Mode. For more information,
refer to Burst Mode Operation.
BURST_READ_LAST Address: 0x44
Burst Read Ending Address Register
Access: Read/Write Reset Value: 0x09
Bit7 6543210
Field BM7 BM6 BM5 BM4 BM3 BM2 BM1 BM0
Data Type: Eight bit unsigned integer.
USAGE: This register provides the ending register address the sensor will read during Burst Mode. For more information,
refer to Burst Mode Operation.
Note: The last address should be larger than the starting address.
REST_MODE_CONFIG Address: 0x45
Rest Mode Configuration Register
Access: Read/Write Reset Value: 0x00
Bit7 6543210
Field RM1 RM0 RSVD RSVD RSVD RSVD RSVD RSVD
Data Type: Eight bit unsigned integer.
USAGE: This register is used to set the operating mode of the ADNS-2080.
Bit(s) Field Name Description
7:6 RM[1:0] Sensor Operating Mode
0x00: Normal (default)
0x01: Rest 1
0x02: Rest 2
0x03: Rest 3
5:0 RSVD Reserved
Read operation to REST_MODE_CONFIG indicates which mode the sensor is in. Write operation into this register
will force the sensor into rest modes (Rest 1, 2 or 3). Write the value 0x40 into 0x45 register to force sensor into
Rest 1, 0x80 to Rest 2 or 0xC0 to Rest 3. To get out of any forced rest mode, write 0x00 into this register to set
back to normal mode.
For product information and a complete list of distributors, please go to our web site: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved.
AV02-2668EN - March 30, 2012
MOTION_BURST Address: 0x63
Burst Read Register
Access: Read Reset Value: 0x00
Bit7 6543210
Field MB7 MB6 MB5 MB4 MB3 MB2 MB1 MB0
Data Type: Various.
USAGE: This register is used to enable burst mode. Burst is initiated by a read of this register, which will then return
continuous data starting from the address stored in BURST_READ FIRST register through BURST_READ_LAST
register. Burst read must read the exact number of addresses set in order to complete the burst operation. For
more information refer to Burst Mode Operation section.
