ICP DAS USA A-812PG, Hardware User Manual, Page: 16 / 37

2.4 I/O Register Address
The A-812PG occupies 16 consecutive PC I/O addresses. The following table
lists the registers and their locations.
Address Read Write
Base+0 8254 Counter 0 8254 Counter 0
Base+1 8254 Counter 1 8254 Counter 1
Base+2 8254 Counter 2 8254 Counter 2
Base+3 Reserved 8254 Counter Control
Base+4 A/D Low Byte D/A Channel 0 Low Byte
Base+5 A/D High Byte D/A Channel 0 High Byte
Base+6 DI Low Byte D/A Channel 1 Low Byte
Base+7 DI High Byte D/A Channel 1 High Byte
Base+8 Reserved A/D Clear Interrupt Request
Base+9 Reserved A/D Gain Control
Base+A Reserved A/D Multiplexer Control
Base+B Reserved A/D Mode Control
Base+C Reserved A/D Software Trigger Control
Base+D Reserved DO Low Byte
Base+E Reserved DO High Byte
Base+F Reserved Reserved
A-812PG Hardware Manual (Ver.1.2, Sep/2005, IPH-004-12) ----- 16