ics9248-171 ETC-unknow, ics9248-171 Datasheet - Page 5

• Manufacturer Part Number: ics9248-171
• Description: Single Chip, System Clock K7/1647 Chipset 147mhz; Sdram Clocks
• Manufacturer: ETC-unknow

Byte 3: SDRAM, Active/Inactive Register
(1= enable, 0 = disable)
Byte 5: Peripheral , Active/Inactive Register
(1= enable, 0 = disable)
Byte 1: CPU, Active/Inactive Register
(1= enable, 0 = disable)
Notes:
1. Inactive means outputs are held LOW and are disabled
2. Latched Frequency Selects (FS#) will be inverted logic
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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
B
from switching.
load of the input frequency select pin conditions.
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
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
7
6
5
4
3
2
0
1
7
6
5
4
3
2
1
0
I P
I P
4
I P
2 4
, 7
0 3
7 2
6 2
5 2
1 3
N
-
-
-
-
-
-
-
2 2
3 4
5 4
0 1
N
-
-
-
9
7
N
-
6 4
#
#
#
P
P
W
P
W
1
1
1
1
1
1
1
1
X
W
1
1
1
1
1
1
1
X
X
X
1
1
1
1
1
D
D
D
R
R
R
R
R
R
R
S
F
A
A
8 4
S
R
d
C
C
S
S
S
S
S
D
F
F
F
e
e
e
e
e
e
e
D
S
f e
D
D
D
D
D
P
P
S
S
S
e s
e s
e s
e s
e s
e s
e s
G
G
E
R
M
# 3
# 0
# 1
# 2
R
U
U
R
R
R
R
R
P
P
F
u a
A
v r
v r
v r
v r
v r
v r
v r
H
A
C
C
1
0
A
A
A
A
A
0
M
d e
d e
d e
d e
d e
d e
d e
t l
z
M
L
L
M
M
M
M
M
D
D
-
1
K
K
0
=
D
8
9
0 1
1 1
2 1
E
1
E
T
T
X
E
S
, 0
1
S
1
S
C
=
C
r o
C
C
1
R
R
P
R
X
P I
P I
2
U
P I
X
C
I T
I T
I T
L
K
O
O
O
C
N
N
N
0
5
Byte 4: Reserved , Active/Inactive Register
(1= enable, 0 = disable)
Byte 2: PCI, Active/Inactive Register
(1= enable, 0 = disable)
Byte 6: Peripheral , Active/Inactive Register
(1= enable, 0 = disable)
Note: Don’t write into this register, writing into this
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
i B
i B
i B
i B
i B
i B
i B
i 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
I
t i
t i
t i
t i
T I
T I
T
7 t
6 t
5 t
4 t
2 t
0 t
3 t
1 t
7
6
5
4
3
2
1
0
6
4
2
0
7
5
3
1
register can cause malfunction
P
I P
I P
I
3
3
3
3
3
3
N
-
-
0 2
9 1
4 1
2 1
8 1
5 1
3 1
9
8
7
6
3
2
N
-
N
-
-
-
-
-
-
-
-
#
#
#
P
P
P
W
0
1
1
1
1
1
1
1
W
W
X
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
Advance Information
D
D
D
1
B
s
(
S
c
S
S
S
S
S
S
: 7
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1
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M
P
P
P
P
P
P
P
D
D
D
D
D
D
D
R
R
R
R
R
R
R
R
t i
C
C
C
C
C
C
C
p
) 6
D
R
c
R
R
R
R
R
R
e
e
e
e
e
e
e
e
O
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k
C I
C I
C I
C I
C I
C I
C I
: 7
e s
e s
e s
e s
e s
e s
e s
e s
A
G
A
A
A
A
A
A
S
D
s
=
D
) 6
M
_
M
M
M
M
M
M
L
L
L
L
L
L
L
E
o
v r
v r
v r
v r
v r
v r
v r
v r
1
ICS9248-171
S
R
K
K
K
K
K
K
K
n
#
2
3
4
5
6
7
D
D
0
=
T
d e
d e
d e
d e
d e
d e
d e
d e
c
D
A
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5
4
3
2
1
0
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D
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F
M
E
0
S
c
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G
S
(
(
(
(
(
(
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(
S
k
#
N
N
N
N
N
N
N
N
C
&
_
C
C
D
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S
R
w
t o
t o
t o
t o
t o
t o
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P I
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P
I T
T
I T
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I
#
B
O
O
c
O
p
t i
w
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O
P
N
N
A
i
#
(
c
N
l l
: 7
k
G
w
s
s
) 6
P
i
o t
B
l l
=
p
t i