ics9248-95 Integrated Device Technology, ics9248-95 Datasheet - Page 6

• Manufacturer Part Number: ics9248-95
• Description: Frequency Generator & Integrated Buffers For Pentium/protm
• Manufacturer: Integrated Device Technology

ICS9248-95
Notes:
1. Inactive means outputs are held LOW and are disabled from switching.
2. Latched Frequency Selects (FS#) will be inverted logic load of the input frequency select pin conditions.
310D—04/12/05
Byte 1: CPU, Active/Inactive Register (1 = enable, 0 = disable)
Byte 2: PCI Active/Inactive Register (1 = enable, 0 = disable)
Byte 3: SDRAM Active/Inactive Register (1 = enable, 0 = disable)
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
t i
t i
t i
t i
t i
t i
t i
t i
B
B
t i
t i
t i
t i
t i
t i
t i
t i
t i
t i
t i
t i
t i
t i
t i
t i
t i
7
6
5
4
3
2
0
1
t i
t i
7
6
5
4
3
2
0
7
6
5
4
3
2
1
0
1
P
P
P
n i
0 2
9 2
2 3
7 1
8 1
1 2
8 2
1 3
n i
n i
3 1
2 1
1 1
0 1
6 4
9 3
2 4
3 4
5 4
7
8
-
-
-
-
-
#
#
#
P
P
P
W
W
1
1
1
1
1
1
1
1
W
X
X
1
1
1
1
1
1
1
1
1
1
1
1
1
1
D
D
D
S
S
S
S
S
S
S
S
D
D
D
D
D
D
D
D
L
C
R (
R (
S
C
C
C
R (
L
P
P
P
P
P
P
R
R
R
R
R
R
R
R
D
t a
P
P
P
P
C
C
C
C
C
C
t a
s e
s e
A
A
A
A
A
A
A
A
U
R
U
U
U
s e
h c
C I
C I
C I
C I
C I
C I
h c
r e
r e
M
M
M
M
M
M
M
M
C
A
C
C
C
r e
d e
L
L
L
L
L
L
e v
e v
d e
D
L
M
L
L
L
1 1
0 1
9
8
7
6
5
4
D
e v
K
K
K
K
K
K
K
K
K
K
e
(
(
(
(
(
(
) d
) d
F
_
e
c s
F
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A
A
A
A
A
A
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4
3
2
1
0
_
2
1
0
(
(
F
c s
S
A
A
S
F
F
c
c
c
c
c
c
i r
# 2
(
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# 0
v i t
v i t
v i t
v i t
v i t
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A
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A
c
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A
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t p
A
v i t
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A
t p
A
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n I
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n
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c a
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D
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e
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6