Vol 1

Electrical Specifications
78 Intel® Xeon® Product 2800/4800/8800 v2 Product Family
Datasheet Volume One, February 2014
Intel SMI2 Data Signals
2
Differential SSTL Input/Output VMSE{0/1/2/3}_DQS_D[N/P][8:0]
Single ended SSTL Input/Output VMSE{0/1/2/3}_DQ[63:0]
VMSE{0/1/2/3}_ECC[7:0]
SSTL Input VMSE{0/1/2/3}_ERR_N
Intel SMI2 Miscellaneous Signals
2
Single ended CMOS Input VMSE_PWR_OK
PCI Express* Port 1, 2, & 3 Signals
Differential PCI Express* Input PE0_RX_[N/P][15:0]
PE1_RX_[N/P][15:0]
Differential PCI Express* Output PE0_TX_[N/P][15:0]
PE1_TX_[N/P][15:0]
DMI2/PCI Express* Signals
Differential DMI2 Input DMI_RX_D[N/P][3:0]
DMI2 Output DMI_TX_D[N/P][3:0]
Intel® QuickPath Interconnect (QPI) Signals
Differential Intel® QPI Input QPI{0/1/2}_DRX_D[N/P][19:00]
QPI{0/1/2}_CLKRX_D[N/P]
Intel® QPI Output QPI{0/1/2}_DTX_D[N/P][19:00]
QPI{0/1/2}_CLKTX_D[N/P]
Platform Environmental Control Interface (PECI)
Single ended PECI PECI
System Reference Clock (BCLK{0/1})
Differential CMOS1.05v Input BCLK{0/1}_D[N/P]
SMBus
Single ended Open Drain CMOS
Input/Output
MEM_SCL_C{3:0}
MEM_SDA_C{3:0}
VPPSCL
VPPSDA
JTAG & TAP Signals
Single ended CMOS1.05v Input TCK, TDI, TMS, TRST_N , EAR_N
CMOS1.05v Input/Output PREQ_N
CMOS1.05v Output
Open Drain CMOS
Input/Output
BPM_N[7:0]
Open Drain CMOS Output TDO, PRDY_N
Serial VID Interface (SVID) Signals
Single ended CMOS1.05v Input SVIDALERT_N
Open Drain CMOS
Input/Output
SVIDDATA
Open Drain CMOS Output SVIDCLK
Table 6-5. Signal Groups (Sheet 2 of 3)
Differential/Single
Ended
Buffer Type Signals
1