ICS950703 Datasheet, PDF (13/24 Pages) Integrated Circuit Systems – PROGRAMMABLE TIMING CONTROL HUB FOR P4

Integrated
Circuit
Systems, Inc.
Table 3: Async 3V66/PCI Frequency Selection Table
Byte 5 Bit4 Byte 5 Bit3 Byte 5 Bit2 Byte 5 Bit1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
1
0
0
0
1
0
0
0
1
1
0
0
1
1
0
1
0
0
0
1
0
0
0
1
0
1
0
1
0
1
0
1
1
0
0
1
1
0
0
1
1
1
0
1
1
1
1
1
0
0
1
1
0
0
1
1
0
1
1
1
0
1
Byte 5 Bit0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
3V66
66.00
74.25
84.86
99.00
64.00
72.00
82.29
96.00
59.26
66.67
76.19
88.89
67.22
75.63
86.43
100.83
70.00
78.75
90.00
105.00
PCI
33.00
37.13
42.43
49.50
32.00
36.00
41.15
48.00
29.63
33.34
38.10
44.45
33.61
37.82
43.22
50.42
35.00
39.38
45.00
52.50
I²C Table: Read Back Register
Byte 6
Pin #
Name
Control Function Type
0
Bit 7
-
WDHRB
WD Hard Alarm
R
-
Status Read back
Bit 6
-
MULTSEL0
MULTSEL0 Read
back
R
-
Bit 5
-
MULTSEL1
MULTISEL1 Read
back
R
-
Bit 4
-
SEL100/
133#RB
SEL100/133 # Read
back
R
-
Bit 3
-
FS3RB
FS3 Read back
R
-
Bit 2
-
FS2RB
FS2 Read back
R
-
Bit 1
-
FS1RB
FS1 Read back
R
-
Bit 0
-
FS0RB
FS0 Read back
R
-
I²C Table: Vendor & Revision ID Register
Byte 7
Pin #
Name
Control Function Type
0
Bit 7
-
RID3
R
-
Bit 6
-
Bit 5
-
RID2
RID1
REVISION ID
R
R
-
-
Bit 4
-
RID0
R
-
Bit 3
-
VID3
R
-
Bit 2
-
Bit 1
-
VID2
VENDOR ID
R
-
VID1
R
-
Bit 0
-
VID0
R
-
0690D—05/14/04
13
ICS950703
1
PWD
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
1
PWD
-
0
-
0
-
0
-
1
-
0
-
0
-
0
-
1