Advantech PCI-1762, User Manual

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PCI-1762 User Manual 26
C.1 Overview
The PCI-1762 is delivered with an easy-to-use 32-bit DLL driver for user program-
ming under the Windows XP/Vista/7 operating system. We advise users to program
the PCI-1762sing the 32-bit DLL driver provided by Advantech to avoid the complex-
ity of low-level programming by register. The most important consideration in pro-
gramming the PCI-1762 the register level is to understand the function of the card's
registers. The information in the following sections is provided only for users who
would like to do their own low-level programming.
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.
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: Register Functions
Base
Addr,
+ Deci-
mal 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
R Relay Output Status
RS
15 RS
146 RS
13 RS
12 RS
11 RS
10 RS
9 RS
8 RS
7 RS
6 RS
5 RS
4 RS
3 RS
2 RS
1 RS
0
W Relay Output
RO
15 RO
14 RO
13 RO
12 RO
11 RO
10 RO
9 RO
8 RO
7 RO
6 RO
5 RO
4 RO
3 RO
2 RO
1 RO
0
2
R Isolated Digital Input
IDI
15 IDI
14 IDI
13 IDI
12 IDI
11 IDI
10 IDI
9 IDI
8 IDI
7 IDI
6 IDI
5 IDI
4 IDI
3 IDI
2 IDI
1 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 ID8
F ID0
RF ID0
EN ID0
F
W Interrupt Control Register
ID8
RF ID8
EN ID8
CL
R ID0
RF ID0
EN ID0
CL
R