AM486DX2-66V16BHC AMD (ADVANCED MICRO DEVICES), AM486DX2-66V16BHC Datasheet - Page 49

• Manufacturer Part Number: AM486DX2-66V16BHC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM486DX2-66V16BHC

• Family Name: Am486
• Device Core Size: 32b
• Frequency (max): 66MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 208
• Package Type: SQFP
• Lead Free Status / Rohs Status: Not Compliant

SMI
SMIACT
FLUSH
SMI
SMIACT
FLUSH
KEN
SMI
SMIACT
KEN
FLUSH
Instruction x
Cache Flush State
Instruction x
SMI
SMI
Cache contents
invalidated
Figure 37. SMM Timing in Systems Using Overlaid Memory Space and
Figure 36. SMM Timing in Systems Using Overlaid Memory Space and
Figure 38. SMM Timing in Systems Using Overlaid Memory Space
Cache contents
invalidated
Cache must
be empty
State
Save
State
Save
Write-Through Mode with Caching Disabled During SMM
Write-Through Mode with Caching Enabled During SMM
and Configured in Write-Back Mode
Enhanced Am486DX Microprocessor Family
State
Save
P R E L I M I N A R Y
SMI Handler
SMI Handler
SMI Handler
RSM
Resume
State
Resume
Resume
State
State
RSM
RSM
Cache contents
Normal Cycle
invalidated
Instruction x+1
Instruction x+1
Normal
Normal
Cycle
Cycle
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