ICS91730 Datasheet, PDF (5/11 Pages) Integrated Circuit Systems – Low EMI, Spread Modulating, Clock Generator

ICS91730
LOW EMI, SPREAD MODULATING, CLOCK GENERATOR
Byte
0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Pin #
-
-
Bit 0
Byte
1
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pin #
-
Byte
2
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
Byte
3
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
FS0
Control Function
S pread/ FS 0
FS1
S pread/ FS 1
FS2
S pread/ FS 2
FS3
S pread/ FS 3
FS4
FS4
PD# Tri_Sate
PD# Tri_Sate
Spread Enable
Spread Enable
Spread Spectrum Control
FS 3:4 Hard/Software
HW/SW Control
Select
Ty pe
RW
RW
RW
RW
RW
RW
RW
RW
Bit Control
0
1
Srpead Pecentage
See Table1
These are I2C bits
only
H i-Z
LOW
OFF
ON
HW
SW
PWD
1
0
0
0
0
1
1
0
Affected Pin
Name
Control Function
REF_OUT
REF_OUT_Enable
REF_OUT
FS-IN_ 1
Slew Rate REF-OUT
FS-IN_1 Readback
(Reserved)
(Reserved)
CLK_OUT
Slew Rate CLK-OUT
CLK_OUT
CLK _OUT_En able
(Reserved)
(Reserved)
(Reserved)
(Reserved)
Ty pe
RW
RW
R
R
RW
RW
R
R
Bit Control
0
1
Disable Enable
Nominal
-
Fa st
-
-
-
Nominal Fast
Disable Enable
-
-
-
-
PWD
1
1
X
0
1
1
1
1
Affected Pin
Name
Control Function
-
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
Ty pe
-
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
PWD
1
1
1
1
1
1
1
1
Affected Pin
Name
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
Control Function
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
Ty pe
RW
RW
RW
RW
RW
RW
RW
RW
Bit Control
0
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PWD
1
1
1
1
1
1
1
1
IDT® LOW EMI, SPREAD MODULATING, CLOCK GENERATOR
5
ICS91730
REV F 061611