Vol 1

Intel® Xeon® Product 2800/4800/8800 v2 Product Family 79
Datasheet Volume One, February 2014
Electrical Specifications
Processor Asynchronous Sideband Signals
Single ended CMOS1.05v Input BIST_ENABLE
BMCINIT
FRMAGENT
PWRGOOD
PMSYNC
RESET_N
SOCKET_ID[2:0]
TXT_AGENT
TXT_PLTEN
Open Drain CMOS
Input/Output
CAT_ERR_N
CPU_ONLY_RESET
MEM_HOT_C{01/23}_N
PROCHOT_N
Open Drain CMOS Output ERROR_N[2:0]
THERMTRIP_N
Miscellaneous Signals
N/A Output PROC_ID[1:0]
SKTOCC_N
Power/Other Signals
Power / Ground V
CC
, V
TT,
V
VMSE_01,
V
VMSE_23,
V
CCPLL,
V
SA,
V
CC33,
V
PECI and
V
SS
Sense Points VCC_SENSE
VSS_VCC_SENSE
VSS_VTT_SENSE
VTT_SENSE
VSA_SENSE
VSS_VSA_SENSE
1. Refer to Section 5, “Signal Descriptions” for signal description details.
Table 6-6. Signals with On-Die Termination (Sheet 1 of 2)
Signal Name
Pull Up /Pull
Down
Rail Value Units Notes
BIST_ENABLE PD 1k-6k Ohms 1
BMCINIT PD 1k-6k Ohms 1
DEBUG_EN_N PU VTT 1k-6k Ohms 1
EAR_N PU VTT 1k-6k Ohms 2
EX_LEGACY_SKT PD 1k-6k Ohms 1
FRMAGENT PD 1k-6k Ohms 1
LGSPARE PU VTT 1k-6k Ohms 1
MSMI_N PU VTT 1k-6k Ohms 1
NMI PD 1k-6k Ohms 1
PM_FAST_WAKE_N PU VTT 1k-6k Ohms 1
PWR_DEBUG_N PU VTT 1k-6k Ohms 1
SAFE_MODE_BOOT PD 1k-6k Ohms 1
SOCKET_ID[2:0] PD 1k-6k Ohms 1
Table 6-5. Signal Groups (Sheet 3 of 3)
Differential/Single
Ended
Buffer Type Signals
1