Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU User Manual

Electrical Characteristics
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Intel
®
82925X/82925XE MCH Datasheet 187
11.3 Signal Groups
The signal description includes the type of buffer used for the particular signal:
GTL+ Open Drain GTL+ interface signal. Refer to the GTL+ I/O Specification for
complete details. The MCH integrates most GTL+ termination resistors.
DDR2 DDR2 System Memory (1.8 V CMOS buffers)(1.9 V CMOS buffers for DDR
533 CAS timing 3-3-3)
PCI Express* PCI Express Interface Signals. These signals are compatible with the PCI
Express Interface Specification 1.0a signaling environment AC specifications.
The buffers are not 3.3V tolerant.
Analog Analog signal interface.
Ref Voltage reference signal.
HVCMOS 2.5 V tolerant high voltage CMOS buffers.
SSTL-1.8 1.8 V tolerant stub series termination logic.
Table 11-4. Signal Groups
Signal
Group
Signal Type Signals Notes
Host Interface Signal Groups
(a) GTL+
Input/Outputs
HADS#, HBNR#, HBREQ0#, HDBSY#, HDRDY#,
HDINV[3:0]#, HA[31:3]#, HADSTB[1:0]#, HD[63:0],
HDSTBP[3:0]#, HDSTBN[3:0]#, HHIT#, HHITM#,
HREQ[4:0]#, HLOCK#
(b) GTL+
Common Clock Outputs
HBPRI#, HCPURST#, HDEFER#, HTRDY#, HRS[2:0]#,
HDPWR#, HEDRDY#
(c) GTL+
Asynchronous Input
BSEL[2:0], HPCREQ#
(d) Analog Host I/F Ref &
Comp. Signals
HVREF, HSWING HRCOMP, HSCOMP
PCI Express* Interface Signal Groups
(e) PCI Express* Input PCI Express Interface:
EXP_RXN(15:0), EXP_RXP(15:0),
(f) PCI Express Output PCI Express Interface:
EXP_TXN(15:0), EXP_TXP(15:0)
(g) Analog
PCI Express I/F
Compensation Signals
EXP_COMP0
EXP_COMPI

Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU Specifications

General

Brand	Intel
Model	925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU
Category	Computer Hardware
Language	English