932SQ420DGLFT Datasheet, PDF (17/27 Pages) Integrated Device Technology – PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS

932SQ420D
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
SMBus Table: Reserved
Byte 5 Pin #
B it 7
B it 6
B it 5
B it 4
-
B it 3
-
B it 2
-
B it 1
-
B it 0
-
Name
FS4
FS3
FS2
FS1
FS0
C ontrol Function
RESERVED
RESERVED
RESERVED
Freq. Sel 4
Freq. Sel 3
Freq. Sel 2
Freq. Sel 1
Freq. Sel 0
Type
RW
RW
RW
RW
RW
0
1
See NS_SAS/NS_SRC
Frequency Table.
De fa ult
0
0
0
0
1
1
1
1
SMBus Table: Test Mode and CPU/SRC/PCI Frequency Select Register
Byte 6 Pin #
Name
C ontrol Function
Type
0
1
B it 7
-
Test Mode
Test Mode Type
RW
Hi-Z
REF/N
B it 6
-
Test Select
Select Test Mode
RW
Disable
Ena ble
B it 5
-
RESERVED
B it 4
-
100M_133M# (See note)
Frequency Select
R
133 MHz
10 0MHz
B it 3
-
FS3
Freq. Sel 3
RW
B it 2
-
FS2
Freq. Sel 2
RW See CPU/SRC/PCI Frequency
B it 1
-
FS1
Freq. Sel 1
RW
Select Table
B it 0
-
FS0
Freq. Sel 0
RW
Note: Internal Pull up on 100M_133M# pin will result in default CPU frequency of 100 MHz.
De fa ult
0
0
0
Latch
1
0
0
0
SMBus Table: Vendor & Revision ID Register
Byte 7 Pin #
Name
B it 7
-
R ID3
B it 6
-
R ID2
B it 5
-
R ID1
B it 4
-
R ID0
B it 3
-
VID 3
B it 2
-
VID 2
B it 1
-
VID 1
B it 0
-
VID 0
C ontrol Function
REVISION ID
VENDOR ID
Type
R
R
R
R
R
R
R
R
0
1
0011 for D rev
0001 for ICS/IDT
De fa ult
0
0
1
1
0
0
0
1
SMBus Table: Byte Count R egister
Byte 8 Pin #
Name
B it 7
-
BC7
B it 6
-
BC6
B it 5
-
BC5
B it 4
-
BC4
B it 3
-
BC3
B it 2
-
BC2
B it 1
-
BC1
B it 0
-
BC0
C ontrol Function
Byte Count
Programming b(7:0)
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
1
Writing to this register will
configure how many bytes will
be read back, default is A
bytes.
(0 to 9
De fa ult
0
0
0
0
1
0
1
0
SMBus Table: Device ID Register
Byte 9 Pin #
Name
B it 7
D ID7
B it 6
DID6
B it 5
D ID5
B it 4
DID4
B it 3
D ID3
B it 2
DID2
B it 1
D ID1
B it 0
DID0
C ontrol Function
Type
0
R
-
R
-
R
-
Device ID
R
-
(17 hex)
R
-
R
-
R
-
R
-
1
De fa ult
-
0
-
0
-
0
-
1
-
0
-
1
-
1
-
1
IDT® PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
17
932SQ420D
REV H 042012