
About the Manual
Blue Chip Technology Ltd.
01270193.doc
Introduction
The PCI-ADC is a PCI-compatible half-card which provides analogue and
digital input/outputs and counter/timers.
Eight differential or sixteen single ended analogue inputs are available with
12-bit resolution and programmable gain to allow full scale input ranges of
between ± 5mV and ± 5 volts. The maximum sample rate of these is 230 KS/s.
A FIFO input buffer is available such that 1024 analogue samples may be taken
before processor intervention is required.
Four bipolar analogue outputs are provided to 12 bits resolution. Each may be
individually configured as voltage or current outputs with full scale range of
±10 volts or ±20mA.
There are 24 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 outputs of which may be
used to generate interrupts, to initiate analogue input conversion, analogue
output sample update, or digital I/O. A 4 MHz crystal oscillator is available on
board to allow the counter/timers to act as accurate timebases.
All analogue and digital 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 eight interrupt sources
on the board, the interrupting source being readily identified by the board.
The PCI-ADC is intended to be installed with the minimum of user interaction.
The board is configured by the system BIOS and by the application drivers and
no on-board links are required to select functionality.