
PCI-1720U User Manual 18
Chapter 4 Register Structure and Format
4.1 Overview
PCI-1720U is delivered with an easy-to-use 32-bit DLL driver for user
programming under Windows 98, 2000 and XP operating systems. We
advise users to program the PCI-1720U using the 32-bit DLL driver pro-
vided by Advantech to avoid the complexity of low-level programming
by register.
The most important consideration in programming the PCI-1720U card at
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.
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