參數(shù)資料
型號(hào): BXM80526B500256
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: 64-BIT, 500 MHz, MICROPROCESSOR, CPGA495
封裝: MICRO PGA-495
文件頁數(shù): 8/84頁
文件大?。?/td> 450K
代理商: BXM80526B500256
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet
Intel Corporation
8
Transitions in the A20M# and PREQ# signals are recognized while in the Auto Halt state.
Figure 3. Clock Control States
HALT/Grant
Snoop
Normal
HS=false
Stop
Grant
Auto
Halt
HS=true
Quick
Start
Sleep
Deep
Sleep
(!STPCLK#
and !HS) or
stop break
STPCLK# and
!QSE and SGA
Snoop
occurs
Snoop
serviced
STPCLK# and
QSE and SGA
(!STPCLK# and !HS)
or RESET#
Snoop
serviced
Snoop
occurs
!STPCLK#
and HS
STPCLK# and
!QSE and SGA
HLT and
halt bus cycle
halt
break
Snoop
serviced
Snoop
occurs
STPCLK# and
QSE and SGA
!STPCLK#
and HS
!SLP# or
RESET#
SLP#
BCLK
stopped
BCLK on
and !QSE
BCLK
stopped
BCLK on
and QSE
V0001-00
NOTES:
halt break – A20M#, BINIT#, FLUSH#, INIT#, INTR, NMI, PREQ#, RESET#, SMI#
HLT – HLT instruction executed
HS – Processor Halt State
QSE – Quick Start State Enabled
SGA – Stop Grant Acknowledge bus cycle issued
stop break – BINIT#, RESET#
2.2.4
Stop Grant State
The processor enters this mode with the assertion of the STPCLK# signal when it is configured for
Stop Grant state (via the A15# strapping option). The processor is still able to respond to snoop
requests and latch interrupts. Latched interrupts will be serviced when the processor returns to the
Normal state. Only one occurrence of each interrupt event will be latched. A transition back to the
Normal state can be made by the deassertion of the STPCLK# signal or the occurrence of a stop
break event (a BINIT# or RESET# assertion).
The processor will return to the Stop Grant state after the completion of a BINIT# bus
initialization unless STPCLK# has been de-asserted. RESET# assertion will cause the processor to
immediately initialize itself, but the processor will stay in the Stop Grant state after initialization
until STPCLK# is deasserted. A transition to the Sleep state can be made by the assertion of the
SLP# signal.
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