ICS954204 Datasheet, PDF (13/16 Pages) Integrated Circuit Systems – Programmable Timing Control HubTM for Mobile P4TM Systems

Integrated
Circuit
Systems, Inc.
ICS954204
SMBus Table: Vendor & Revision ID Register
Byte 7
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pin #
-
-
-
-
-
-
-
-
N am e
RID3
RID2
RID1
RID0
VID3
VID2
VID1
VID0
Control Function
REVISION ID
VENDO R ID
SMBus Table: Clock Request Control Register
Byte 8
Pin #
N am e
Bit 7
-
Bit 6
32
CLKREQB# Control
Bit 5
32
Bit 4
32
Bit 3
-
Bit 2
33
Bit 1
33
Bit 0
33
CLKREQB# Control
CLKREQB# Control
CLKREQA# Control
CLKREQA# Control
CLKREQA# Control
C o n t ro l
R es er v ed
SRCCLK5 is controlled
SRCCLK3 is controlled
SRCCLK1 is controlled
R es er v ed
SRCCLK4 is controlled
SRCCLK2 is controlled
SRCCLK0 is controlled
SMBus Table: LCDCLK_SS Control Register
Byte 9
Bit 7
Bit 6
Bit 5
Bit 4
Pin #
17,18
N am e
LCDCLK_SS3
LCDCLK_SS2
LCDCLK_SS1
LCDCLK_SS0
Bit 3
9
*SEL SRC_LCDCLK#
Bit 2
Bit 1
Bit 0
17, 18
17, 18
-
LCDCLK_SS/SRCCLK0
Enable
LCDCLK_SS Spread
Enable
C o n t ro l
Bit S3
Bit S2
Bit S1
Bit S0
Se le c t
LCDCLK_SS/SRCCLK0
O utput Enable
Enable SS
R es er v ed
Type
0
1
R
-
-
R
-
-
R
-
-
R
-
-
R
-
-
R
-
-
R
-
-
R
-
-
Type
0
1
RW
Not Controlled Controlled
RW
Not Controlled Controlled
RW
Not Controlled Controlled
RW
Not Controlled Controlled
RW
Not Controlled Controlled
RW
Not Controlled Controlled
Type
RW
RW
RW
RW
R
RW
RW
0
1
See LCDCLK_SS Frequency
Select Table 2
LCDCLK
SRCCLK0
Disable (HiZ)
OFF
Enable
ON
Table 2: LCDCLK_SS Frequency Select
Byte9/
bit1
S3
S2
S1
0
X
X
X
1
0
0
0
1
0
0
0
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
1
1
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
1
1
0
1
1
1
1
0
1
1
1
0
1
1
1
1
1
1
1
1
0933D—03/16/05
S0
Pin 17/18
MHz
Spread %
Spread Type
X
100.00
-
0
100.00
0.8
-
Down
1
100.00
1
Down
0
100.00
1.25
Down
1
100.00
1.5
Down
0
100.00
1.75
Down
1
100.00
2
Down
0
100.00
2.5
Down
1
100.00
3
Down
0
100.00 +/-0.3
Center
1
100.00 +/-0.4
Center
0
100.00 +/-0.5
Center
1
100.00 +/-0.6
Center
0
100.00 +/-0.8
Center
1
100.00 +/-1.0
Center
0
100.00 +/-1.25
Center
1
100.00 +/-1.5
Center
PWD
x
x
x
x
0
0
0
1
PWD
-
1
0
0
-
1
0
0
PWD
0
1
1
1
-
1
1
0
13