ICS950812 Datasheet, PDF (7/29 Pages) Integrated Circuit Systems – Frequency Generator with 200MHz Differential CPU Clocks

ICS950812
BYTE
4
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pin #
35
33
33
35
24
23
22
21
Affected Pin
Name
FS4
FS5
3V66_0/FS5**
3V66_1/VCH_CLK/FS4**
66MHZ_IN/3V66_5
66MHZ_OUT2/3V66_4
66MHZ_OUT1/3V66_3
66MHZ_OUT0/3V66_2
Control Function
Frequency Selection
Frequency Selection
Output control
Output control
Output control
Output control
Output control
Output control
Type
RW
RW
RW
RW
RW
RW
RW
RW
Bit Control
0
1
Disable Enable
Disable Enable
Disable Enable
Disable Enable
Disable Enable
Disable Enable
Disable Enable
Disable Enable
PWD
X
X
1
1
1
1
1
1
BYTE
5
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pin #
X
X
X
X
38
39
Affected Pin
Name
-
-
3V66(5:2)/66MHZ_OUT(2:0)
(See table 6)
3V66(1:0) (See table 7)
48MHz_DOT Slew Control
48MHz_USB Slew Control
Control Function
Unused
Reserved
Allow control of output with
assertion of CPU_STOP#.
Allow control of output with
assertion of CPU_STOP#.
00 = Medium (default), 01 = Low,
11,10 =High
00 = Medium (default), 01 = Low,
11,10 =High
Note: Functions in Byte 5 of CK408 were intended as a test and debug byte only.
BYTE
6
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pin #
X
X
X
X
X
X
X
X
Affected Pin
Name
Revision ID Bit 3
Revision ID Bit 2
Revision ID Bit 1
Revision ID Bit 0
Vendor ID Bit 3
Vendor ID Bit 2
Vendor ID Bit 1
Vendor ID Bit 0
Control Function
Revision ID Value Based on
Device Revision
(Reserved)
(Reserved)
(Reserved)
(Reserved)
Type
-
X
X
X
RW
RW
RW
RW
Bit Control
0
1
-
-
Freerun
Freerun
-
-
-
-
-
Not
Freerun
Not
Freerun
-
-
-
-
-
Type
R
R
R
R
R
R
R
R
Bit Control
0
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PWD
0
0
0
0
0
0
0
0
PWD
X
X
X
X
0
0
0
1
BYTE
7
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pin #
X
X
X
X
X
X
X
X
Affected Pin
Name
-
-
-
-
-
-
-
-
Control Function
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Type
R
R
R
R
R
R
R
R
Bit Control
0
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PWD
0
0
0
0
0
0
0
0
BYTE
8
Bit 7
Pin #
X
Affected Pin
Name
-
Control Function
(Reserved)
Type
X
Bit Control
0
1
-
-
PWD
0
Bit 6
X
-
Bit 5
X
-
Bit 4
X
-
Bit 3
X
-
Bit 2
X
-
Bit 1
X
-
(Reserved)
(Reserved)
(Reserved)
Readback Byte Count
X
-
X
-
X
-
R
-
-
0
-
0
-
0
-
1
R
-
-
1
R
-
-
1
Bit 0
X
-
R
-
-
1
Note: Byte 8 is for ICS test only. Do not write as system damage may occur. Bit(3:0) contain the readback Byte count.
0542G—08/21/03
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