AMD-X5-133ADW AMD [Advanced Micro Devices], AMD-X5-133ADW Datasheet - Page 50

• Manufacturer Part Number: AMD-X5-133ADW
• Manufacturer: AMD [Advanced Micro Devices]

50
Note:
For proper operation of systems configured in Write-back mode when caching during SMM is allowed, force WB/WT Low to
force all caching to be write-through during SMM.
SMIACT
SMIACT
WB/WT
SMIACT
SMI
SMI
SMI
KEN
AMD
Figure 34. SMM Timing in Systems Using Non-Overlaid Memory Spaces
Figure 35. SMM Timing in Systems Using Non-Overlaid Memory Spaces
Figure 33. SMM Timing in Systems Using Non-Overlaid Memory Space
and Write-Back Mode with Caching Enabled During SMM
and Write-Back Mode with Caching Disabled During SMM
and Write-Through Mode with Caching Enabled During SMM
State
State
Save
Save
State
Save
Am5
X
PRELIMINARY
86 Microprocessor
SMI Handler
SMI Handler
SMI Handler
State Resume
State Resume
State Resume
RSM
RSM
RSM
Normal
Normal
Normal
Cycle
Cycle
Cycle