
COMMERCIALTEMPERATURERANGE
6
IDTCV149
PROGRAMMABLEFLEXPCCLOCKFORAMDK8PROCESSORATIRS480
BYTE 7
Bit
Output(s)Affected
Description / Function
0
1
Type
Power On
7
Revision ID
R
0
6
Revision ID
R
0
5
Revision ID
R
0
4
Revision ID
R
0
3
Vendor ID
R
0
2
Vendor ID
R
1
Vendor ID
R
0
Vendor ID
R
1
BYTE 6
Bit
Output(s)Affected
Description / Function
0
1
Type
Power On
7
Reserve
RW
0
6
SRC0, SR[7:3], SMC2
SRC0, SRC[7:3] SSC control
RW
0
5
SRC0, SR[7:3], SMC1
(see SMC table)
RW
0
4
SRC0, SR[7:3], SMC0
RW
0
3
Reserved
RW
0
2
SRC[2:1], SMC2
RW
0
1
SRC[2:1], SMC1
SRC[2:1] control (see SMC table)
RW
0
SRC[2:1], SMC0
RW
0
BYTE 4
BYTE 5
Bit
Output(s) Affected
Description / Function
0
1
Type
Power On
7
HTT66
HTT66strengthselection
RW
1
6
HTT66
RW
0
5
PCIStrC1
PCI strength selection
RW
1
4
PCIStrC0
RW
0
3
REFStr1
REFstrengthselection
RW
1
2
REFStr0
RW
0
1
48MHStr1
USB48MHz strength selection
RW
1
0
48MHzStr0
RW
0
Bit
Output(s) Affected
Description / Function
0
1
Type
Power On
7
SRC7
NotControlled
Controlled
RW
0
6
SRC6
NotControlled
Controlled
RW
0
5
SRC5
When CLKREQ is HIGH,
NotControlled
Controlled
RW
0
4
SRC4
Output is Hi-Z
NotControlled
Controlled
RW
0
3
SRC3
NotControlled
Controlled
RW
0
2
Reserved
RW
0
1
Reserved
RW
0
SRC0
When CLKREQ is HIGH,
NotControlled
Controlled
RW
0
Output is Hi-Z