Perle Systems RIO 5500036-17 - Manual (Page 136)

RIO Remote I/O System User Guide
Installing RIO ISA Host Cards under Windows 2000
Page 136
Chapter 2 Installing hardware and software
Configuring the quick close settings for an ISA host card
RIO allows some basic configuration of host cards under Windows 2000 as follows:
Polled mode Under Windows 2000, RIO runs the ISA card in polled mode i.e. without using interrupts.
This is useful when the normal interrupt levels used by RIO are not available or you have a
larger number of host cards than available interrupt levels.
Quick close facility When a RIO port is closed in software, the close will not complete until all data in the buffers
has been transmitted. This maintains data integrity. Under windows 2000, a quick close
facility is available which allows the system to close a port immediately when requested to
do. This facility is useful when you want to reduce the time taken to close a collection of
ports, but final data integrity is not important.
To use either of these facilities proceed as follows;
1. In the Windows 2000 desktop, click on the Start button and select
Settings > Control Panel .
The control panel window is now displayed.
2. In the Control Panel window, click on the System icon.
The System Properties tabbed window is now displayed.
Note
RIO ISA cards are always set to polled mode. This cannot be changed
by the user.
Note
If you enable the quick close option, any data buffered in the driver will
be lost.