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PCI-1723 User Manual 36

Appendix C Register Structure & Format

C.1 Overview

The PCI-1723 is delivered with an easy-to-use 32-bit Device Drivers for

user programming under the Windows 2000/95/98/NT/ME/XP operating

system. We advise users to program the PCI-1723 using the 32-bit Device

Drivers provided by Advantech to avoid the complexity of low-level reg-

istry programming.

The most important consideration in programming the PCI-1723 the reg-

ister level is to understand the function of the card's registers. The infor-

mation 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-1723 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-1723 or driver

and its address relative to the card's base address.

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 59 60

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