Table 2-2. System Memory Reset And S3 States - Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU Datasheet

Express chipset for the intel 82925x/82925xe memory controller hub (mch)
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Signal Description

Table 2-2. System Memory Reset and S3 States

Interface
Signal Name
System
Channel A
Memory
SCLK_A[5:0]
SCLK_A[5:0]#
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]
SODT_A[3:0]
System
Channel B
Memory
SCLK_B[5:0]
SCLK_B[5:0]#
SCS_B[3:0]#
SMA_B[13]
SMA_B[12:11]
SMA_B[10:8]
SMA_B[7]
SMA_B[6:0]
SBS_B[2]
SBS_B[1:0]
SRAS_B#
SCAS_B#
SWE_B#
SDQ_B[63:0]
SDM_B[7:0]
SCB_B[7:0]
SDQS_B[8:0]
32
State During
I/O
RSTIN#
Assertion
O
TRI
O
TRI
O
TRI
O
TRI
O
TRI
O
TRI
O
TRI
O
TRI
I/O
TRI
O
TRI
1
I/O
TRI
2
I/O
TRI
2
I/O
TRI
O
LV
O
LV
O
TRI
O
TRI
O
TRI
O
TRI
O
LV
O
TRI
O
LV
O
TRI
O
LV
O
TRI
O
TRI
O
TRI
O
TRI
I/O
TRI
O
TRI
1
I/O
TRI
2
I/O
TRI
State After
S3
RSTIN# De-
assertion
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
LV
LV
LV
LV
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
LV
LV
TRI
TRI
LV
LV
TRI
TRI
LV
LV
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
TRI
®
Intel
82925X/82925XE MCH Datasheet
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