参数资料
型号: RB80526PZ667256
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 64-BIT, 667 MHz, MICROPROCESSOR, CPGA370
封装: FCPGA-370
文件页数: 6/74页
文件大小: 502K
代理商: RB80526PZ667256
14
Datasheet
Pentium III Processor for the PGA370 Socket up to 750 MHz
2.2.5
Sleep State—State 5
The Sleep state is a very low power state in which the processor maintains its context, maintains
the phase-locked loop (PLL), and has stopped all internal clocks. The Sleep state can only be
entered from the Stop-Grant state. Once in the Stop-Grant state, the SLP# pin can be asserted,
causing the processor to enter the Sleep state. The SLP# pin is not recognized in the Normal or
AutoHALT states.
Snoop events that occur while in Sleep State or during a transition into or out of Sleep state will
cause unpredictable behavior.
In the Sleep state, the processor is incapable of responding to snoop transactions or latching
interrupt signals. No transitions or assertions of signals (with the exception of SLP# or RESET#)
are allowed on the system bus while the processor is in Sleep state. Any transition on an input
signal before the processor has returned to Stop-Grant state will result in unpredictable behavior.
If RESET# is driven active while the processor is in the Sleep state, and held active as specified in
the RESET# pin specification, then the processor will reset itself, ignoring the transition through
Stop-Grant State. If RESET# is driven active while the processor is in the Sleep State, the SLP#
and STPCLK# signals should be deasserted immediately after RESET# is asserted to ensure the
processor correctly executes the reset sequence.
While in the Sleep state, the processor is capable of entering its lowest power state, the Deep Sleep
state, by stopping the BCLK input (see Section 2.2.6). Once in the Sleep or Deep Sleep states, the
SLP# pin can be deasserted if another asynchronous system bus event occurs. The SLP# pin has a
minimum assertion of one BCLK period.
2.2.6
Deep Sleep State—State 6
The Deep Sleep state is the lowest power state the processor can enter while maintaining context.
The Deep Sleep state is entered by stopping the BCLK input (after the Sleep state was entered from
the assertion of the SLP# pin). The processor is in Deep Sleep state immediately after BLCK is
stopped. It is recommended that the BLCK input be held low during the Deep Sleep State.
Stopping of the BCLK input lowers the overall current consumption to leakage levels.
To re-enter the Sleep state, the BLCK input must be restarted. A period of 1 ms (to allow for PLL
stabilization) must occur before the processor can be considered to be in the Sleep state. Once in
the Sleep state, the SLP# pin can be deasserted to re-enter the Stop-Grant state.
While in Deep Sleep state, the processor is incapable of responding to snoop transactions or
latching interrupt signals. No transitions or assertions of signals are allowed on the system bus
while the processor is in Deep Sleep state. Any transition on an input signal before the processor
has returned to Stop-Grant state will result in unpredictable behavior.
2.2.7
Clock Control
BCLK provides the clock signal for the processor and on die L2 cache. During AutoHALT Power
Down and Stop-Grant states, the processor will process a system bus snoop. The processor does
not stop the clock to the L2 cache during AutoHALT Power Down or Stop-Grant states. Entrance
into the Halt/Grant Snoop state allows the L2 cache to be snooped, similar to the Normal state.
相关PDF资料
PDF描述
RB80526RY001128 32-BIT, 1000 MHz, MICROPROCESSOR, CPGA370
RB80526RX766128 32-BIT, 766 MHz, MICROPROCESSOR, CPGA370
RC5C317B REAL TIME CLOCK, PDSO14
RC7102 133.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
RC7108 150 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
相关代理商/技术参数
参数描述
RB80526PZ733256 制造商:Rochester Electronics LLC 功能描述:PIII 733/133 256K ON DIE FC-PGA - Bulk
RB80526PZ733256S L4CG 制造商:Intel 功能描述:MPU Pentium 制造商:Intel 功能描述:MPU Pentium? III Processor 0.18um 733MHz 370-Pin FCPGA
RB80526PZ733256S L4ZL 制造商:Intel 功能描述:MPU Pentium 制造商:Intel 功能描述:MPU Pentium? III Processor 0.18um 733MHz 370-Pin FCPGA
RB80526PZ800256 制造商:Rochester Electronics LLC 功能描述:PIII 800/133 256K ON DIE FC-PGA - Bulk
RB80526PZ866256 制造商:Rochester Electronics LLC 功能描述:PIII 866/133 256K ON DIE FC-PGA - Bulk