Datasheet: PCI-PIO 48 Channel Programmable Input/Output Card Blue Chip Technology
www.bluechiptechnology.co.uk
Key Features
8255 compatible, inputs & outputs
3 on-board 16 bit Counter Timers (8254
compatible)
Facility to fit pull up/down resistors on inputs
Supplied with demonstration software
examples
Fully Universal PCI and Plug -and-play
compliant (compatible with 3.3V and 5V buses)
BS EN ISO 9001:2000
Certificate No FM 33069
The PCI-PIO is a PCI-compatible half-card which provides
digital input/outputs and counter/timers. There are 48 TTL-
compatible programmable digital input/outputs available
from the board. If the controlling devices are used in
handshake mode, the handshake lines are available as
interrupt sources.
There are also three programmable counter/timers, the
enable and clock inputs being available externally, if
required. The outputs are accessible externally or as interrupt sources. A 4MHz crystal oscillator is
available on board to allow the counter/timers to act as accurate timebases. All input/output lines are
available at an industry standard 50 way D-type plug connector. One PCI interrupt line may be
selectively driven by the seven interrupt sources on the board, the interrupting source being readily
identified by the board.
Technical Specification
Number Of I/O Channels 48 arranged as 2 x 3 x 8 I/O bits
Signal Levels
5 Volt TTL Logic Levels
Outputs Logic Low Level: 0 Volts (min.) - 0.4 Volts (max.) @ IOL = 2.5mA
Logic High Level: 3.5 Volts (min.) - 5 Volts (max.) @ IOH = -400mA
Drive Current 2.5 mA. (Logic Low) Vout = 0.4 Volts,
Input Loading
Counters/Timers 3 x 16 Bit. Counter/timers
0,1 and 2 may be cascaded to provide a single 48 bit Counter/timer.
All Counter/timers may be clocked externally at a maximum rate of 4 Mhz.
Onboard Oscillator
Frequency 4MHz. Stability ± 100ppm 0 - 70°C
Interrupt Sources Register selectable to 3 Counter/timer outputs, and 4 PIO handshake control
lines.
Interrupt Levels Supported
All PCI interrupts
Address Overhead
16 contiguous addresses in 16 byte block
Board Power Requirement +3.3 Volts, 0.5 W maximum, +5 Volts, 0.6 W maximum
Signal Connections 1 x 50 way male ‘D-type’ plug
Dimensions 125 (L) x 91 (H) board only, 135 (L) x 122 (H) x 22 (W) including bracket
1 metre cable with IDC and D type
connector (P/N 1371 0071)
50 way screw terminal adapter
(P/N 1981-0004)
Windows® 98/2000, NT® and
XP® drivers
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