Omega Engineering OME-A8111 manual I/O Register Address, Address Read Write

2.4I/O Register Address

The OME-A-8111 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	Reserved
Base+7	DI High Byte	Reserved
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

OME-A-8111 Hardware Manual (ver.1.1, Jul/2003) 11