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PPC-S123 User's Manual
System BIOS Cacheable
When enabled, allows the ROM area FOOOH-FFFFH to be cacheable
when the cache controller is activated. The recommended setting is
"Disabled", especially for high speed CPUs (200 MHz and above).
Video BIOS Cacheable
When enabled, allows the system to use the video BIOS codes from
SRAMs, instead of the slower DRAMs or ROMs.
The options are: Enabled (Default), Disabled.
Video RAM Cacheable
Enables video RAM to be cacheable.
The options are: Disabled (Default), Enabled.
16 Bit I/O Recovery Time
Sets 16-bit I/O signal recovery time.
The options are: 1 (Default), 2, 3, 4, N/A.
Memory Hole at 15M-16M
When enabled, the memory hole at the 15 MB address will be relocated
to the 15 ~ 16 MB address range of the ISA cycle when the processor
accesses the 15 ~ 16 MB address area.
The options are: Disabled (Default), Enabled.
Delayed Transaction
When disabled, the syatem operates normally. When enabled, the
system can support lower-speed ISA devices.
The options are: Disabled (Default), Enabled.
Spread Spectrum
When disabled, the syatem operates normally. When enabled, the
spread spectrum will be set to 0.5% (CNTR).
The options are: Disabled (Default), Enabled.