ics9248-107 Integrated Device Technology, ics9248-107 Datasheet - Page 4

• Manufacturer Part Number: ics9248-107
• Description: Frequency Timing Generator For Pentium Ii Systems
• Manufacturer: Integrated Device Technology

Note 1:
Default at power-up will be for latched logic inputs to define frequency, as displayed byBit 3.
ICS9248-107
Serial Configuration Command Bitmap
Byte 0: Functionality and frequency select register (Default = 0)
(
, 2
B
B
B
B
B
t i
t i
t i
: 7
t i
t i
3
1
0
) 4
1
1
1
0
0
0
B
-
-
-
-
-
-
F
t i
F
S
T
F
N
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
e r
p
s i r
e r
4
n u
r o
2
e r
u q
u q
a t
m
i n
d a
n e
e t
n e
l a
g n
s
y c
B
y c
l l a
e p
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
t c
s i
s i
o
3
7
u r
t u
e s
e s
u p
m
e l
e l
s t
t c
e
B
t c
F
a n
d e
t i
d e
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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
l b
2
6
y b
y b
d e
B
a h
B
t i
F
d r
t i
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
, 2
w
1
5
a
7
e r
4 :
D
e s
s e
B
F
e l
t i
r c
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
, t c
0
p i
4
t a l
i t
n o
h c
0 1
1 1
1 1
1 1
3 1
2 1
2 1
2 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C
d e
0 5
6 6
3 0
0 0
0 0
7 0
9 0
2 1
3 3
3 3
8 3
2 4
6 4
0 5
3 5
6 5
9 5
2 6
6 6
8 6
1 7
4 7
7 7
0 8
. 4
. 6
. 8
. 3
. 0
. 2
. 5
P
. 0
0 .
7 .
n i
U
0 .
0 .
5 4
9 .
0 .
0 .
0 0
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0 3
0 0
0 0
0 0
3 .
9 .
0 .
0 .
0 .
0 .
0 .
0 .
0 .
7 .
0 .
0 .
0 .
0 .
0 .
1 .
1 .
u p
4
s t
4
4
4
4
3
3
3
3
3
3
3
2
2
2
3
3
3
3
1
1
3
3
3
3
3
3
3
3
3
4
4
4
P
. 5
. 8
. 9
. 9
. 0
. 0
. 4
. 5
. 6
. 7
. 9
. 0
. 1
. 2
. 3
. 5
. 4
. 3
. 3
. 3
. 6
. 7
. 3
. 1
. 6
. 6
. 3
. 3
. 8
. 9
. 2
. 4
C
3 3
3 3
8 4
3 6
0 7
3 3
3 3
0 5
0 0
0 5
3 3
0 0
0 5
5 2
3 3
8 4
0 5
0 5
0 5
0 5
5 2
0 0
8 7
0 5
7 6
0 0
5 7
0 5
5 2
0 0
7 6
7 6
I
3
6
6
6
6
7
7
7
5
5
5
6
6
6
6
3
3
6
6
6
7
7
7
7
7
7
8
8
8
8
8
8
9
. 1
. 7
. 8
. 9
. 0
. 1
. 2
. 9
. 1
. 3
. 5
. 6
. 8
. 0
V
. 8
. 6
. 6
. 7
. 2
. 4
. 6
. 3
. 3
. 6
. 6
. 9
. 1
. 3
. 4
. 5
. 7
. 8
6 6
7 6
7 6
7 9
7 2
0 4
7 6
7 6
0 0
0 0
0 0
5 6
0 0
0 0
0 5
3 3
3 3
7 6
5 9
0 0
0 0
0 0
0 0
0 5
0 0
5 5
0 0
0 0
0 5
0 0
0 5
0 0
3 3
I
O
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
. 8
. 8
A
. 0
. 0
. 1
. 1
. 1
. 2
. 2
. 7
. 6
. 6
. 6
. 7
. 8
. 8
. 4
. 4
. 4
. 6
. 5
. 5
. 5
. 6
. 6
. 7
. 7
. 8
. 8
. 9
. 9
. 9
3 3
3 3
I P
7 1
7 6
4 7
2 8
7 1
7 6
0 5
6 6
0 0
7 6
4 7
0 5
9 8
5 2
3 8
0 0
8 3
5 7
3 1
0 5
5 8
5 2
5 7
5 2
3 6
5 2
5 7
5 2
5 7
3 1
C
N
0
P
0 0
W
o
0
0
1
e t
0 1
D
1