EarthWalk eBuddy Series 3, User Manual, Page: 76 / 99

Chipset features setup
2/4/00 -67- eBuddy User Manual
Chipset features setup
The Chipset features setup panel is shown in Figure 5-4. It includes the follow-
ing functions:
Auto Configuration
Sets pre-defined values for DRAM, cache, and timing according to the CPU
type and system clock. The options for this setting are Enabled and Disabled.
When this item is enabled, the pre-defined items can not be modified.
DRAM Timing
DRAM timing is controlled by DRAM timing registers. The timings pro-
grammed into this register depend on the system design. Slower rates may be
necessary for certain system designs to support loose layouts or slower mem-
ory. The options are 60ns and 70ns.
DRAM Leadoff Timing
This item sets the number of CPU clock cycles allowed before reads and writes
to DRAM are performed:
Figure 5-4. Chipset features setup panel
ebud.book Page 67 Friday, February 4, 2000 11:11 AM