Advantech PCL-818 Series Manuel d'utilisateur télécharger pdf (Page 52)

PCL-818 Series User Manual 44

Appendix C Register Structure & Format

C.1 Overview

The PCL-818HD/HG/L is delivered with an easy-to-use 32-bit Device

Drivers for user programming under the Windows 95/98/NT/2000/ME/

XP operating system. We advise users to program the PCL-818HD/HG/L

using the 32-bit Device Drivers provided by Advantech to avoid the com-

plexity of low-level registry programming.

The most important consideration in programming the PCL-818HD/HG/

L 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 PCL-818HD/HG/L 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 PCL-818HD/HG/L

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

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 73 74

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Advantech PCL-818 Series Manuel d'utilisateur Page 52