Specifications

Appendix C
– 28 –PCI-1762 User’s Manual
Advantech Co., Ltd.
www.advantech.com
C.2 I/O Port Address Map
The PCI-1762 requires 32 consecutive addresses in the PC’s I/O space.
The address of each register is specified as an offset from the card’s
base address. For example, BASE+0 is the card’s base address and
BASE+7 is the base address plus seven bytes.
The table C-1 shows the function of each register of the PCI-1762 or
driver and its address relative to the card’s base address.
Table C-1: PCI-1762 register format
Base
Address
+decimal
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
R
Relay Output Status
RS15 RS14 RS13 RS12 RS11 RS10 RS9 RS8 RS7 RS6 RS5 RS4 RS3 RS2 RS1 RS0
W
Relay Output
RO15 RO14 RO13 RO12 RO11 RO10 RO9 RO8 RO7 RO6 RO5 RO4 RO3 RO2 RO1 RO0
2
R
Isolated Digital Input
IDI15 IDI14 IDI13 IDI12 IDI11 IDI10 IDI9 IDI8 IDI7 IDI6 IDI5 IDI4 IDI3 IDI2 IDI1 IDI0
W
N/A
4
R
Board ID Register
ID3 ID2 ID1 ID0
W
N/A
6
R
Interrupt Status Register
ID8
RF
ID8
EN
ID8F
ID0
RF
ID0
EN
ID0F
W
Interrupt Control Register
ID8
RF
ID8
EN
ID8
CLR
ID0
RF
ID0
EN
ID0
CLR