參數(shù)資料
型號(hào): pentium II processor
廠商: Intel Corp.
英文描述: 32 bit processor AT 233MHZ,266MHZ,300MHZ and 333MHZ(工作頻率233,266,300和333兆赫茲32位處理器)
中文描述: 32位處理器,233MHZ,266MHz的的300MHz和333MHz的(工作頻率23326.63萬(wàn)和333兆赫茲32位處理器)
文件頁(yè)數(shù): 10/94頁(yè)
文件大?。?/td> 892K
代理商: PENTIUM II PROCESSOR
PENTIUM II PROCESSOR AT 233 MHZ, 266 MHZ, 300 MHZ, AND 333 MHZ
E
10
2. Auto HALT Power Down State
BCLK running.
Snoops and interrupts allowed.
HALT Instruction and
HALT Bus Cycle Generated
INIT#, BINIT#, INTR, NMI,
SMI#, RESET#
1. Normal State
Normal execution.
STPCLK#
Asserted
STPCLK#
De-asserted
3. Stop Grant State
BCLK running.
Snoops and interrupts allowed.
SLP#
Asserted
SLP#
De-asserted
5. Sleep State
BCLK running.
No snoops or interrupts allowed.
BCLK
Input
Stopped
BCLK
Input
Restarted
6. Deep Sleep State
BCLK stopped.
No snoops or interrupts allowed.
4. HALT/Grant Snoop State
BCLK running.
Service snoops to caches.
Snoop Event Occurs
Snoop Event Serviced
Snoop
Event
Occurs
Snoop
Event
Serviced
STPCLK# Asserted
STPCLK# De-asserted
B757a
Figure 3. Stop Clock State Machine
Due to the inability of processors to recognize bus
transactions during Sleep state and Deep Sleep
state, two-way MP systems are not allowed to have
one processor in Sleep/Deep Sleep state and the
other processor in Normal or Stop-Grant states
simultaneously.
2.2.1.
NORMAL STATE — STATE 1
This is the normal operating state for the processor.
2.2.2.
AUTO HALT POWER DOWN STATE —
STATE 2
AutoHALT is a low power state entered when the
processor executes the HALT instruction. The
processor will transition to the Normal state upon the
occurrence of SMI#, BINIT#, INIT#, or LINT[1:0]
(NMI, INTR). RESET# will cause the processor to
immediately initialize itself.
The return from the SMI handler can be to either
Normal Mode or the AutoHALT Power Down state.
See the Intel Architecture Software Developer’s
Manual, Volume III: System Programming Guide
(Order Number 243192) for more information.
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