ics9248-146 Integrated Device Technology, ics9248-146 Datasheet - Page 3

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ics9248-146

Manufacturer Part Number
ics9248-146
Description
Single Chip Clock Solution For Sis630s Chipsets.
Manufacturer
Integrated Device Technology
Datasheet
Note: PWD = Power-Up Default
0350B—02/02/04
Note1:
Default at power-up will be for latched logic inputs to define frequency, as displayed by Bit 3.
Serial Configuration Command Bitmap
Byte0: Functionality and Frequency Select Register (default = 0)
B
B
B
B
B
t i
B
t i
t i
t i
t i
t i
7
2
3
1
0
4 :
1
1
- 1
0
0
0
B
-
-
t i
-
-
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
T
F
S
F
N
R
s i r
2
e r
p
e r
n u
r o
e r
a t
u q
u q
m
B
i n
d a
F
e t
n e
t i
n e
l a
S
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
g n
l l a
3
S
7
y c
y c
e p
o
s i
t c
B
s i
F
t u
t i
u r
S
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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u p
2
6
m
e l
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s t
t c
t c
E
B
d e
d e
a n
F
t i
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
S
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
l b
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y b
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5
d e
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0
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1
1
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1
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1
1
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1
0
w
4
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1
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1
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0 2
0 1
6 1
3 1
0 1
0 1
3 1
1 1
2 1
3 1
5 1
0 1
5 1
6
6
6
6
e s
C
6
0
0
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1
1
4
0
0
0
0
3
3
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3
6
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0
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5
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. 8
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7
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7 6
7 6
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0 .
0 .
3 .
7 .
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3 .
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0 .
0 .
0 .
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3 .
U
0 0
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7 6
3 3
0 0
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3 3
0 0
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0 0
0 0
0 0
0 0
, t c
7
0
0
0
0
0
0
0
0
0
0
0
3
3
3
3
L
t a
S
1
1
1
1
1
1
1
1
1
1
1
1
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h c
1
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1
0 1
0 1
0 1
1 1
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3 1
5 1
5 1
0 1
0 2
6 1
3 1
3 1
3 1
D
6
6
2
0
0
3
3
0
0
0
1
1
4
0
3
4
5
0
. 6
. 6
d e
R
. 0
. 0
. 0
. 2
. 4
. 8
. 0
. 0
. 0
0
3
0
. 0
3
7
3
0
0
0
5
0
1
3
0
7
1
. 6
. 3
. 3
. 3
7 6
7 6
A
0 .
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3 .
7 .
3 .
0 .
3 .
3 .
0 .
0 .
0 .
5 .
7 .
0 .
5 .
5 .
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
7 6
3 3
3 3
3 3
n I
M
0
0
0
3
3
0
0
0
0
0
0
0
3
0
0
0
u p
D
3
s t
s e
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
P
r c
. 3
. 1
. 4
. 0
. 0
. 0
. 0
. 3
. 4
. 5
. 5
. 1
. 3
. 3
. 3
. 3
. 3
. 3
. 3
. 3
. 3
. 4
. 3
. 3
. 3
. 4
. 4
. 3
. 3
. 3
. 3
. 3
I C
p i
0 6
0 0
0 5
0 0
0 0
0 0
0 0
0 0
0 5
0 0
0 0
0 5
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 4
3 3
3 4
3 3
3 3
3 4
3 4
3 8
3 4
3 8
i t
n o
S
E
6
6
6
6
6
6
6
6
6
6
7
7
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
A
. 6
. 6
. 6
. 6
. 6
. 6
. 6
. 6
. 7
. 2
. 9
. 0
. 6
. 0
. 0
. 0
. 8
. 6
. 6
. 6
. 8
. 8
. 6
. 6
. 6
. 9
. 0
. 7
. 6
. 0
. 3
. 7
L
G
7 6
7 6
6 6
7 6
7 6
7 6
7 6
7 6
0 2
0 0
0 0
0 0
7 6
0 0
0 0
0 0
7 6
7 8
7 6
7 8
7 6
7 6
7 8
7 8
0 0
0 0
0 0
7 6
7 8
0 0
0 0
7 6
P
=
0
S
E
5
5
5
5
5
5
5
5
5
4
5
5
5
5
4
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
A
. 0
. 0
. 5
. 0
. 0
. 0
. 0
. 0
. 6
. 6
. 1
. 0
. 0
. 0
. 0
. 8
. 0
. 0
. 0
. 0
. 1
. 1
. 0
. 0
. 5
. 7
. 2
. 0
. 0
. 2
. 2
. 0
L
G
0 0
0 0
6 5
0 0
0 0
0 0
0 0
0 0
0 0
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5 7
0 0
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0 0
0 0
0 0
0 0
0 0
0 0
5 1
0 5
0 5
5 1
5 1
0 0
0 5
0 5
0 0
5 1
0 5
0 5
5 7
P
=
1
0
0
+
0
0
0
0
0
+
+
+
+
0
+
+
+
+
+
+
+
+
+
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0 -
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p
0 -
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5 2
5 2
5 2
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5 2
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