Figure 2-1. Intel ® 82925X/82925Xe Mch Signal Interface Diagram - Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU Datasheet

Signal Description
®
Figure 2-1. Intel 82925X/82925XE MCH Signal Interface Diagram
HDSTBP[3:0]#, HDSTBN[3:0]#
22
HA[31:3]#
HD[63:0]
HADS#
HBNR#
HBPRI#
HDBSY#
HDEFER#
HDRDY#
HEDRDY#
HHIT#
HHITM#
HLOCK#
HREQ[4:0]#
HPCREQ#
HTRDY#
HRS[2:0]#
HCPURST#
HBREQ0#
HDINV[3:0]#
HADSTB[1:0]#
BSEL[2:0]
HRCOMP
HSCOMP
HSWING
HVREF
SCS_A[3:0]#
SMA_A[13:0]
SBS_A[2:0]
SRAS_A#
SCAS_A#
SWE_A#
SDQ_A[63:0]
SDM_A[7:0]
SCB_A[7:0]
SDQS_A[8:0], SDQS_A[8:0]#
SCKE_A[3:0]
SCLK_A[5:0], SCLK_A[5:0]#
SODT_A[3:0]
SCS_B[3:0]#
SMA_B[13:0]
SBS_B_B[2:0]
SRAS_B#
SCAS_B#
SWE_B#
SDQ_B[63:0]
SDM_B[7:0]
SCB_B[7:0]
SDQS_B[8:0], SDQS_B[8:0]#
SCKE_B[3:0]
SCLK_B[5:0], SCLK_B[5:0]#
SODT_B[3:0]
Note:
1. SCB_A[7:0] and SCB_B[7:0] are on the Intel
2. SDQS_A8/SDQS_A8# and SDQS_B8/SDQS_B8# are on the Intel® 82925X only.
PCI
Express
x16
Graphics
Port
Processor
Clocks,
System
Reset, and
Bus
Misc.
Interface
Direct
Media
Interface
Voltage
Reference,
and Power
System
Memory
DDR2
Channel
A
System
Memory
DDR2 Ref./
Comp.
System
Memory
DDR2
Channel
B
®
82925X only.
®
Intel 82925X/82925XE MCH Datasheet
EXP_RXN[15:0], EXP_RXP[15:0]
EXP_TXN[15:0], EXP_TXP[15:0]
EXP_COMPO
EXP_COMPI
EXP_SLR
HCLKP, HCLKN
GCLKP, GCLKN
DREFCLKN, DREFCLKP
RSTIN#
PWROK
EXTTS#
BSEL[2:0]
MTYPE
ICH_SYNC#
DMI_RXP[3:0], DMI_RXN[3:0]
DMI_TXP[3:0], DMI_TXN[3:0]
VCC
VTT
VCC_EXP
VCCSM
VCC2
VCCA_EXPPLL
VCCA_HPLL
VCCA_SMPLL
VSS
SRCOMP[1:0]
SOCOMP[1:0]
SM_SLEWIN[1:0]
SM_SLEWOUT[1:0]
SMVREF[1:0]
Signal_Info
R