Datasheet

Package Mechanical Specifications and Pin Information
Datasheet 63
Signal Name Type Description
VID[6:0] O
VID[6:0] (Voltage ID) pins are used to support automatic
selection of power supply voltages (V
CC
). Unlike some previous
generations of processors, these are CMOS signals that are
driven by the processor. The voltage supply for these pins must
be valid before the VR can supply V
CC
to the processor.
Conversely, the VR output must be disabled until the voltage
supply for the VID pins becomes valid. The VID pins are needed
to support the processor voltage specification variations. See
Table 3 for definitions of these pins. The VR must supply the
voltage that is requested by the pins, or disable itself.
VCCP PWR
Processor I/O Power Supply which needs to remain on in Deep
Power Down Technology (C6) state.
VCCPC6 PWR
Processor I/O Power Supply which needs to remain on in Deep
Power Down Technology (C6) state.
VCC_SENSE O
VCC_SENSE is an isolated low impedance connection to the
processor core power (V
CC
). It can be used to sense or measure
power near the silicon with little noise.
VSS_SENSE O
VSS_SENSE is an isolated low impedance connection to
processor core V
SS
. It can be used to sense or measure ground
near the silicon with little noise.
ยง