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| 型號： | intel Pentium CPU |
| 廠商： | Intel Corp. |
| 英文描述： | 32 Bit CPU With MMX Technology and Mobile Module(32位帶MMX和移動模塊處理器) |
| 中文描述： | 32位CPU的MMX技術(shù)和移動模塊（32位帶MMX公司和移動模塊處理器） |
| 文件頁數(shù)： | 11/36頁 |
| 文件大?。?/td> | 395K |
| 代理商： | INTEL PENTIUM CPU |
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INTEL PENTIUM PROCESSOR WITH MMX TECHNOLOGY MOBILE MODULE
11
1/8/98 4:35 PM 24351502.DOC
2.1.4.
POWER MANAGEMENT
(8 SIGNALS)
Table 5 lists the
Intel Mobile Module’s Power
Management signals. The SM_CLK and SM_DATA
signals refer to the two-wire serial SMBus
interface.
Although this interface is currently used solely for
the digital thermometer thermal sensor, there are
reserved serial addresses for future use.
Table 5. Power Management Signal Descriptions
Name
Type
Voltage
Description
*OEM_PU
I
V_3
OEM Pull-up:
A pull up resistor of 10K
is required on OEM_PU.
L2_ZZ
I
V_3
Low-Power Mode For Cache SRAM:
This pin is used to power down the
L2 cache SRAMs . See PIIX4 ISA Bridge External Architecture
Specification (Order Number 290562-001) on ZZ.
SUS_STAT#
I
**V_3AL-
WAYS
Suspend Status:
This signal connects to the SUS_STAT1# output of the
PIIX4. It provides information on the host clock status and is asserted
during all suspend states..
VR_ON
I
V_3S
VR_ON:
Voltage regulator on. This 3.3V signal controls the operation of
the Intel Mobile Module’s voltage regulator. This signal should be
generated as a function of the PIIX4 SUSB# signal. VR_ON should be
timed to rise after the switch power planes have stabilized. Please refer to
section 3.4.2 for proper VR_ON sequencing.
VR_PWRGD
O
V_3S
VR_PWRGD:
Driven by the Intel Mobile Module to indicate the voltage
regulator is stable.
Can be used in some combination to generate the
system PWROK signal.
CAUTION
: This signal has an output impedance of approximately 100k
. Care
must be taken to prevent loading of this signal.
SM_CLK
I
V_3
Serial Clock:
Clock signal used on the SMBUS - SMBus interface to the
digital thermometer.
SM_DATA
I/O
V_3
Serial Data:
Data signal on the SMBUS - SMBus interface to the digital
thermometer.
*ATF_INT#
O
V_3
ATF Interrupt:
Output signal of the digital thermometer.
See National
Semiconductor LM75 specification for pull up values.
* - These signals are open-drain and require a pull up resistor on the system electronics.
** - V_3ALWAYS is the 3.3V continuous supply. This voltage is generated whenever V_DC is available and
supplied to the PIIX4 resume well.
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