Intel CW8064701487007 Datasheet download pdf (Page 93)

Datasheet, Volume 1 93

Signal Description

6.12 Processor Power Signals

Note:

1. The VCCSA_VID can toggle at most once in 500 uS; The slew rate of VCCSA_VID is 1 V/nS.

6.13 Sense Signals

Table 6-14. Processor Power Signals

Signal Name Description

Direction/

Buffer Type

VCC Processor core power rail. Ref

VCCIO Processor power for I/O. Ref

VDDQ Processor I/O supply voltage for DDR3. Ref

VAXG Graphics core power supply. Ref

VCCPLL VCCPLL provides isolated power for internal processor PLLs. Ref

VCCSA System Agent power supply. Ref

VCCPQE (BGA Only)

Filtered, low noise derivative of V

CCIO

. Load current is less than

1 mA.

Ref

VCCDQ (BGA Only)

Filtered, low noise derivative of V

DDQ

. Load current is less than

1 mA.

Ref

VIDSOUT

VIDSCLK

VIDALERT#

VIDALERT#, VIDSCLK, and VIDSCLK comprise a three signal

serial synchronous interface used to transfer power

management information between the processor and the

voltage regulator controllers. This serial VID interface replaces

the parallel VID interface on previous processors.

CMOS I/ OD O

OD O

CMOS I

VCCSA_VID[1]

Voltage selection for VCCSA: For the platforms, this signal

must have a pull-down resistor to ground. The output may be

high or low, and may change dynamically.

CMOS

VCCSA_VID[0]

Voltage selection for VCCSA: For 2nd Generation Intel

Core™ processor family mobile, the output will be low.

For Mobile 3rd Generation Intel

Core™ processor family /

Mobile Intel

Pentium

processor family / Mobile Intel

Celeron

processor family, the output may be high or low, and

may change dynamically.

CMOS

Table 6-15. Sense Signals (Sheet 1 of 2)

Signal Name Description

Direction/

Buffer Type

VCC_SENSE

VSS_SENSE

VCC_SENSE and VSS_SENSE provide an isolated, low

impedance connection to the processor core voltage and

ground. They can be used to sense or measure voltage near the

silicon.

Analog

VAXG_SENSE

VSSAXG_SENSE

VAXG_SENSE and VSSAXG_SENSE provide an isolated, low

impedance connection to the V

AXG

voltage and ground. They

can be used to sense or measure voltage near the silicon.

Analog

VCCIO_SENSE

VSS_SENSE_VCCIO

VCCIO_SENSE and VSS_SENSE_VCCIO provide an isolated, low

impedance connection to the processor VCCIO voltage and

ground. They can be used to sense or measure voltage near the

silicon.

Analog

VDDQ_SENSE

VSSD_SENSE

VDDQ_SENSE and VSSD_SENSE provides an isolated, low

impedance connection to the V

DDQ

voltage and ground. They

can be used to sense or measure voltage near the silicon.

Analog

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