ICS951464AGLF Datasheet, PDF (11/24 Pages) Integrated Device Technology – Programmable System Clock Chip for ATI RS/RD690 K8™ - based Systems

ICS951464
IDT^TM/ICST^M Programmable System Clock Chip for ATI RS/RD690 K8^TM - based Systems
SMBus Table: CLKREQA# and CLKREQC# Output Control Register
Byte 4 Pin #
Name
Control Function
Bit 7 12,13
REQASRC7
CLKREQA# Controls SRC7
Bit 6 16,17
REQASRC6
CLKREQA# Controls SRC6
Bit 5
Bit 4
Bit 3
Bit 2
18,19
31,30
REQASRC5
REQCATIG1
CLKREQA# Controls SRC5
Reserved
Reserved
CLKREQC# Controls ATIG1
Bit 1 35,34
REQCATIG0
CLKREQC# Controls ATIG0
Bit 0 ^39,38
REQCSRC0
CLKREQC# Controls SRC0
SMBus Table: CPU Stop Control and SRC Frequency Select Register
Byte 5
Bit 7
Bit 6
Bit 5
Bit 4
Pin #
Name
SRC, Differential Output Disable
ATIG
Mode
Control Function
Reserved
Reserved
Reserved
Hi-Z or Driven when disable
Bit 3
-
SRC FS3
SRC Freq Select Bit 3
Bit 2
-
SRC FS2
SRC Freq Select Bit 2
Bit 1
-
Bit 0
-
SRC FS1
SRC FS0
SRC Freq Select Bit 1
SRC Freq Select Bit 0
SMBus Table: Device ID Register
Byte 6 Pin #
Bit 7
-
Name
Device ID7 (MSB)
Bit 6
-
Device ID6
Bit 5
-
Device ID5
Bit 4
-
Device ID4
Bit 3
-
Device ID3
Bit 2
-
Device ID2
Bit 1
-
Device ID1
Bit 0
-
Device ID0 (LSB)
Control Function
DEVICE ID
SMBus Table: Revision and Vendor ID Register
Byte 7
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Pin #
-
-
-
-
-
-
-
Name
RID3
RID2
RID1
RID0
VID3
VID2
VID1
Bit 0
-
VID0
Control Function
REVISION ID
VENDOR ID
Type
RW
RW
RW
RW
RW
RW
Type
RW
RW
RW
RW
RW
Type
R
R
R
R
R
R
R
R
Type
R
R
R
R
R
R
R
R
0
Does not
control
Does not
control
Does not
control
Does not
control
Does not
control
Does not
control
1
Controls
Controls
Controls
Controls
Controls
Controls
PWD
0
0
0
0
0
0
0
0
0
1
Driven
Hi-Z
See Table 2:
SRC Frequency Selection
Table
PWD
0
0
0
0
0
0
0
0
0
1
PWD
-
-
0
-
-
1
-
-
1
-
-
0
-
-
0
-
-
0
-
-
1
-
-
0
0
1
PWD
-
-
x
-
-
x
-
-
x
-
-
x
-
-
0
-
-
0
-
-
0
-
-
1
IDT^TM/ICST^M Programmable System Clock Chip for ATI RS/RD690 K8^TM - based Systems
11
1211B—09/17/09