Datasheet

Signal Description
94 Datasheet, Volume 1
6.14 Ground and Non-Critical to Function (NCTF)
Signals
6.15 Processor Internal Pull-Up / Pull-Down Resistors
§ §
VDDQ_SENSE
VSS_SENSE_VDDQ
VDDQ_SENSE and VSS_SENSE_VDDQ 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
VCC_VAL_SENSE
VSS_VAL_SENSE
VCC Validation Sense. O
Analog
VAXG_VAL_SENSE
VSSAXG_VAL_SENSE
VAXG Validation Sense. O
Analog
Table 6-16. Ground and Non-Critical to Function (NCTF) Signals
Signal Name Description
Direction/
Buffer Type
VSS Processor ground node GND
VSS_NCTF (BGA Only)
Non-Critical to Function: These signals are for package
mechanical reliability.
DC_TEST_xx#
(BGA Only)
Daisy Chain: These signals are for solder joint reliability and
non-critical to function.
Table 6-17. Processor Internal Pull-Up / Pull-Down Resistors
Signal Name Pull-Up / Pull-Down Rail Value
BPM[7:0] Pull Up VCCIO 65–165 
PRDY# Pull Up VCCIO 65–165 
PREQ# Pull Up VCCIO 65–165 
TCK Pull Down VSS 5–15 k
TDI Pull Up VCCIO 5–15 k
TMS Pull Up VCCIO 5–15 k
TRST# Pull Up VCCIO 5–15 k
CFG[17:0] Pull Up VCCIO 5–15 k
Table 6-15. Sense Signals (Sheet 2 of 2)
Signal Name Description
Direction/
Buffer Type