beautypg.com

Acrosser AR-B9612 User Manual

Page 43

background image

4-12 AR-B9612 User’s Guide

(1) AT Bus Clock

This option sets the polling clock speed of ISA Bus (PC/104).

Note: 1. PCLK means the CPU inputs clock.

2. Acrosser recommends user setting at the range of

8MHz to 10MHz.

(2) Slow Refresh

This option sets the DRAM refresh cycle time.

(3) RAS Precharge time

The DRAM RAS precharge time.

(4) Time Insert Wait

The DRAM time insert wait: RAS Active and CAS Precharge
function setting.

(5) ISA High Speed

The Speed field shows the speed at which the processor runs
internally.

(6) I/O Recovery

If I/O Recovery Feature options is Enabled, the BIOS inserts a
delay time between two I/O commands. The delay time is
defined in I/O Recovery Period option.