Intel BX80623I32100, Datasheet

Page: 68 / 112

Signal Description
68 Datasheet, Volume 1
6.11 Processor Power Signals
6.12 Sense Signals
6.13 Ground and Non-Critical to Function (NCTF)
Signals
Table 6-13. 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
VCCAXG Graphics core power supply. Ref
VCCPLL VCCPLL provides isolated power for internal processor PLLs Ref
VCCSA System Agent power supply 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.
I/O
O
I
CMOS
VCCSA_VID Voltage selection for VCCSA O
Table 6-14. Sense Signals
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.
O
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.
O
Analog
VCCIO_SENSE
VSS_SENSE_VCCIO
VCCIO_SENSE and VSS_SENSE_VCCIO provide an isolated, low
impedance connection to the processor V
CCIO
voltage and ground.
They can be used to sense or measure voltage near the silicon.
O
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.
O
Analog
VCCSA_SENSE
VCCSA_SENSE provide an isolated, low impedance connection to
the processor system agent voltage. It can be used to sense or
measure voltage near the silicon.
O
Analog
Table 6-15. Ground and Non-Critical to Function (NCTF) Signals
Signal Name Description
Direction/
Buffer Type
VSS Processor ground node GND
VSS_NCTF
Non-Critical to Function: These pins are for package mechanical
reliability.