General Description
The MAX14502 evaluation kit (EV kit) provides a proven
design to evaluate the MAX14502 Hi-Speed USB-to-SD
card reader. The EV kit includes Windows®2000/XP-
and Windows Vista®-compatible software that provides
a simple graphical user interface (GUI) for exercising
the features of the MAX14502.
The MAX14502 EV kit has a built-in USB-to-I2C bridge,
allowing a PC to access the internal I2C registers of the
MAX14502, as well as providing the power for the EV kit.
The MAX14502 EV kit PCB comes with a
MAX14502AETL+ installed. The EV kit can also be used
to evaluate the MAX14500AETL+, MAX14501AETL+, and
MAX14503AETL+ by replacing the MAX14502AETL+,
and changing the crystal oscillator frequency according
to the device used or by applying an appropriate external
clock on the SMA connector. Contact the factory for free
samples of the MAX14500AETL+, MAX14501AETL+, and
MAX14503AETL+.
Features
♦Simple and I2C Control Modes
♦On-Board SD Card Socket, USB Type-A, and USB
Type-B Connectors
♦Default 19.2MHz Input Clock, Alternative Input
Clock Connector Provided
♦External Microprocessor Connections Provided
♦Windows 2000/XP- and Windows Vista
(32-Bit)-Compatible Software
♦On-Board USB-to-I2C Bridge
♦USB Powered (Cable Included)
♦Lead(Pb)-Free and RoHS Compliant
♦Proven PCB Layout
♦Fully Assembled and Tested
Evaluates: MAX14502
MAX14502 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
19-4318; Rev 0; 11/08
For information on other Maxim products, visit Maxim’s website at www.maxim-ic.com.
Ordering Information
PART TYPE
MAX14502EVKIT+ EV Kit
+
Denotes lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION QTY DESCRIPTION
C1–C9, C13,
C14, C16–C19,
C22, C23, C30
18
1μF ±10%, 10V X5R ceramic
capacitors (0603)
Murata GRM188R61A105K
C10, C11, C15 3
47μF ±10%, 10V tantalum
capacitors (Size D)
KEMET B45197A2476K409
C12, C26–C29 5
4.7μF ±10%, 10V X5R ceramic
capacitors (0805)
Murata GRM219R61A475K
C20, C21, C24,
C25 4
18pF ±5%, 50V C0G ceramic
capacitors (0603)
Murata GRM1885C1H180J
C31 1
0.01μF ±10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C103K
C32 1
0.1μF ±10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C104K
D1, D2 2 Green LEDs (0603)
D3 1 Red LED (0603)
D4 1 Yellow LED (0603)
Windows and Windows Vista are registered trademarks of
Microsoft Corp.
DESIGNATION QTY DESCRIPTION
FB1–FB8 8
120 at 100MHz, 200mA ferrite
beads (0603)
Murata BLM18RK121SN1
J1 1
SD memory card standard
connector
J2, J6 2 USB type-B right-angle receptacles
J3 1 USB type-A right-angle receptacle
J4 1 Dual-row (2 x 15) 30-pin header
J5 1 SMA PC-mount connector
J7 0
Not installed, dual-row (2 x 5)
10-pin header
JU1, JU5, JU6,
JU9–JU16 11 2-pin headers
JU2, JU17,
JU18 3 3-pin headers
JU3, JU4, JU7,
JU8 4 4-pin headers
JU19–JU24 0 Not installed, 3-pin headers
Q1, Q2 2 n-channel low-threshold-voltage
FETs (3 SOT23)
Evaluates: MAX14502
MAX14502 Evaluation Kit
2 _______________________________________________________________________________________
Component List (continued)
DESIGNATION QTY DESCRIPTION
R1, R5, R6, R7,
R13, R18, R19,
R22
8 10k ±5% resistors (0603)
R2 1 68.1k ±1% resistor (0603)
R3 1 27.4k ±1% resistor (0603)
R4 1 6.19k ±1% resistor (0603)
R8, R14–R17 5 300 ±5% resistors (0603)
R9, R25 2 10.5k ±1% resistors (0603)
R10, R26 2 6.49k ±1% resistors (0603)
R11, R12, R27,
R28 4 100k ±5% resistors (0603)
R20, R21 2 3.9k ±5% resistors (0603)
R23, R24 2 33.2 ±1% resistors (0603)
R29 0 Not installed, resistor (0603)
R30–R41 12 0 ±5% resistors (0603)
R42, R43 0 Not installed, resistors (0402)
SW1 1 SPDT slide switch
SW2 1 Momentary pushbutton switch
TP1 1 Test point, red
TP2 1 Test point, black
U1 1
Hi-Speed USB-to-SD card reader
(40 TQFN-EP*)
Maxim MAX14502AETL+
U2, U7 2
200mA adjustable output LDO
regulators
(6 SOT23)
Maxim MAX8880EUT+
DESIGNATION QTY DESCRIPTION
U3 1
Single CMOS switch debouncer
(4 SOT143)
Maxim MAX6816EUS+
U4 1
USB peripheral controller
(24 TQFN-EP*)
Maxim MAX3420EETG+
U5 1
Microcontroller (68 QFN-EP*)
Maxim MAXQ2000-RAX+
U6 1
2.5V LDO regulator (5 SC70)
Maxim MAX8511EXK25+
U8 1
3.0V LDO regulator (5 SC70)
Maxim MAX8510EXK30+
U9 1
Dual buffer with Schmitt trigger
inputs (6 SC70)
VCC, VIO,
VIO_U1, VOSC,
VSD, VSD_C,
VTM
7 Test points, white
Y1 1 19.2MHz crystal oscillator
Y2 1 12MHz crystal
Y3 1 20MHz crystal
— 18 Shunts
— 1 PCB: MAX14502 Evaluation Kit+
*
EP = Exposed pad.
SUPPLIER PHONE WEBSITE
KEMET Corp. 864-963-6300 www.kemet.com
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
Component Suppliers
Note: Indicate that you are using the MAX14502 when contacting these component suppliers.
MAX14502 EV Kit Files
FILE DESCRIPTION
INSTALL.EXE Installs the EV kit files on your computer
MAX14502.EXE Application program
UNINST.INI Uninstalls the EV kit software
Quick Start
Required Equipment
Before beginning, the following equipment is needed:
• MAX14502 EV kit (USB cables included)
• A user-supplied Windows 2000-/XP-/Vista-compati-
ble PC with two spare USB ports
• A user-supplied SD card
• A user-supplied USB mouse (or other low-/full-
speed USB device)
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and
underlined refers to items from the Windows operating
system.
Procedure
The MAX14502 EV kit is fully assembled and tested.
Follow the steps below to verify board operation:
1) Visit www.maxim-ic.com/evkitsoftware to down-
load the latest version of the EV kit software,
14502Rxx.ZIP. Save the EV kit software to a tem-
porary folder and uncompress the ZIP file.
2) Install the EV kit software on your computer by run-
ning the INSTALL.EXE program inside the tempo-
rary folder. The program files are copied and icons
are created in the Windows Start | Programs
menu.
3) Verify that all jumpers are in their default positions,
as shown in Table 1.
4) Move slider switch SW1 to the on position.
5) Insert the SD card into the SD card socket (J1).
6) Connect the USB type-B connector (J6) to one of
the PC USB ports.
7) Verify that the D2 green LED and the D4 yellow
LED on the EV kit board are lit.
8) Connect the USB mouse to the type-A USB con-
nector (J3).
9) Connect the USB type-B connector (J2) to another
PC USB port.
10) Verify that the PC recognizes the USB mouse.
11) Start the MAX14502 EV kit software by opening its
icon in the Start | Programs menu.
12) The EV kit software main window appears, as shown
in Figure 1. Verify that Hardware: Connected is dis-
played on the status bar at the bottom of the soft-
ware main window.
13) In the Bridge Mode group box, select the Pass
Thru radio button to set the MAX14502 in pass thru
mode. Verify that MAX14502: Simple Control/Pass
Thru Mode is displayed on the status bar.
14) In the Bridge Mode group box, select the Card
Reader radio button to set the MAX14502 in card
reader mode. Verify that MAX14502: Simple
Control/Card Reader Mode is displayed on the
status bar.
15) Verify that the PC recognizes the SD card.
16) On the EV kit board, verify that the D1 green LED
is lit, indicating that the internal microcontroller in
the MAX14502 is activated in card reader mode.
Evaluates: MAX14502
MAX14502 Evaluation Kit
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Figure 1. MAX14502 Software Main Window (Simple Control Mode)
Evaluates: MAX14502
17) Press the Change To I2C Control button to set the
MAX14502 in I2C control mode. Verify that
MAX14502 Connected on Address: 0xE0 is dis-
played on the status bar. All the I2C register con-
trols are available on the GUI, as shown in Figure 2.
18) Verify that the PC recognizes the USB mouse.
Detailed Description of Software
The software sets the MAX14502 in either simple or I2C
control mode.
In simple control mode, the user can set the device in
either pass thru or card reader mode. When the EV kit
is connected correctly, the software automatically moni-
tors the status of the BERR pin.
There are two tabs when the software works in I2C con-
trol mode.
MAX14502 Evaluation Kit
4 _______________________________________________________________________________________
Figure 2. MAX14502 Software Main Window (Graphical View Tab)
Graphical View Tab
When the Graphical View tab (Figure 2) is selected, a
user has access to all of the I2C registers through the
on-board USB-to-I2C bridge.
The embedded picture shows the current mode of the
device. A command log window displays the read and
write operations on the MAX14502.
The status register (0x12) bit values are displayed in
the Status group box. When the solid circle is green, it
indicates a value of 1. When the solid circle is gray, it
indicates a value of 0.
When the INT pin is asserted, the solid circle beside the
INT Pin label turns red. Otherwise, it is gray.
When the on-board USB-to-I2C bridge detects the pres-
ence of the MAX14502, the solid circle beside the
Ready label turns green. If the EV kit is not connected
correctly, the circle is gray.
Press the Query button to read all the register values.
Press the Load… button to load the register settings
from a text file.
Press the Save… button to save the current register
settings to a text file.
Press the Reset EVKIT button to reset the EV kit,
including the USB re-enumeration on J6. The
MAX14502 is reset to its power-on-reset (POR) state.
Register View Tab
On the Register View tab (Figure 3), detailed names
and values of the registers are displayed.
Refer to the MAX14500–MAX14503 IC data sheet for
the detailed descriptions of all the registers available in
I2C control mode.
Software Menu Bar
Select File | Exit to exit the application.
The Help menu item gives information about this EV kit
software.
Detailed Description of Hardware
The MAX14502 operates in pass thru and card reader
mode. The device can be controlled in two ways: sim-
ple control method and I2C control method.
The MAX14502 EV kit board provides a proven layout
for evaluating the device. The EV kit comes with one
MAX14502AETL+ installed.
Power Supplies
By default, the EV kit is powered by USB (J6). The dif-
ferent power supplies for the MAX14502 can be
applied according to user requirements. See Table 1
for possible power-supply configurations.
Alternative Input Clock
By default, the MAX14502 uses the on-board 19.2MHz
crystal oscillator output as the input clock. The user can
apply alternative clocks on the SMA connector (J5) and
set the shunt of jumper JU2 in the 2-3 position.
Reset MAX14502
The MAX14502 is reset by pressing and releasing
switch SW2.
Evaluates: MAX14502
MAX14502 Evaluation Kit
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Evaluates: MAX14502
MAX14502 Evaluation Kit
6 _______________________________________________________________________________________
Figure 3. MAX14502 Software Main Window (Register View Tab)
Evaluates: MAX14502
MAX14502 Evaluation Kit
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Table 1. MAX14502 EV Kit Jumper Descriptions (JU1–JU18)
JUMPER SHUNT DESCRIPTION
1-2* CCRD_PRST pin pulled up to VSD by R1
JU1 Open CCRD_PRST pin has no pullup resistor
1-2* Input clock is on-board 19.2MHz crystal oscillator output
JU2 2-3 Input clock is applied on SMA connector
1-2 EV kit powered by EXT_5V power supply
1-3* EV kit powered by USB power supply on J6
JU3
1-4 EV kit powered by USB power supply on J2
1-2 I2C_SEL pin connected to GND
1-3 I2C_SEL pin connected to VIOJU4
1-4* I2C_SEL pin controlled by MAXQ2000 GPO pin
1-2* SCL pin connected to the on-board USB-to-I2C bridge
JU5 Open SCL pin disconnected from the on-board USB-to-I2C bridge
1-2* SDA pin connected to the on-board USB-to-I2C bridge
JU6 Open SDA pin disconnected from the on-board USB-to-I2C bridge
1-2 ADD pin connected to GND
1-3 ADD pin connected to VIO
JU7
1-4* ADD pin controlled by MAXQ2000 GPO pin
1-2 MODE pin connected to GND
1-3 MODE pin connected to VIO
JU8
1-4* MODE pin controlled by MAXQ2000 GPO pin
1-2* BERR/INT pin connected to MAXQ2000 GPI pin
JU9 Open BERR/INT pin disconnected from MAXQ2000 GPI pin
1-2* BUSY pin connected to MAXQ2000 GPI pin
JU10 Open BUSY pin disconnected from MAXQ2000 GPI pin
1-2* RST pin controlled by MAXQ2000 GPO pin
JU11 Open RST pin disconnected from MAXQ2000 GPO pin
1-2* VCC connected to on-board +3.3V power supply
JU12 Open VCC applied externally on the VCC test point
1-2* VTM connected to on-board +3.3V power supply
JU13 Open VTM applied externally on the VTM test point
1-2* On-board crystal oscillator powered by on-board +3V power supply
JU14 Open On-board crystal oscillator powered externally on the VOSC test point
1-2* VSD connected to on-board +3.3V power supply
JU15 Open VSD applied externally on the VSD test point
1-2* SD card powered by on-board +3.3V power supply
JU16 Open SD card powered externally on the VSD_C test point
1-2* VIO connected to on-board +3.3V power supply
2-3 VIO connected to MAXQ2000 VDDIO
JU17
Open VIO applied externally on the VIO test point
1-2* VIO_U1 connected to on-board +3.3V power supply
2-3 VIO_U1 connected to MAXQ2000 VDDIOJU18
Open VIO_U1 applied externally on the VIO_U1 test point
*Default position.
Evaluates: MAX14502
MAX14502 Evaluation Kit
8 _______________________________________________________________________________________
Figure 4a. MAX14502 EV Kit Schematic (Sheet 1 of 3)
Evaluates: MAX14502
MAX14502 Evaluation Kit
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Figure 4b. MAX14502 EV Kit Schematic (Sheet 2 of 3)
Evaluates: MAX14502
MAX14502 Evaluation Kit
10 ______________________________________________________________________________________
Figure 4c. MAX14502 EV Kit Schematic (Sheet 3 of 3)
Evaluates: MAX14502
MAX14502 Evaluation Kit
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Figure 5. MAX14502 EV Kit Component Placement Guide—Component Side
Evaluates: MAX14502
MAX14502 Evaluation Kit
12 ______________________________________________________________________________________
Figure 6. MAX14502 EV Kit PCB Layout—Component Side
Evaluates: MAX14502
MAX14502 Evaluation Kit
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Figure 7. MAX14502 EV Kit PCB Layout—Inner Layer 2
Evaluates: MAX14502
MAX14502 Evaluation Kit
14 ______________________________________________________________________________________
Figure 8. MAX14502 EV Kit PCB Layout—Inner Layer 3
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________
15
© 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Evaluates: MAX14502
MAX14502 Evaluation Kit
Figure 9. MAX14502 EV Kit PCB Layout—Solder Side
