ics9248-141 ETC-unknow, ics9248-141 Datasheet - Page 5

• Manufacturer Part Number: ics9248-141
• Description: System Clock With 166mhz Processor Support
• Manufacturer: ETC-unknow

Byte 3: SDRAM, Active/Inactive Register
(1= enable, 0 = disable)
Byte 5: Peripheral , 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
Byte 1: CPU, Active/Inactive Register
(1= enable, 0 = disable)
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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
B
from switching.
load of the input frequency select pin conditions.
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
I
T
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
I P
P
I P
4
8 4
3
I
2
4
4
6 2
0 2
N
5 2
7 1
8 1
1 2
-
-
-
-
-
-
N
-
-
-
-
N
4 ,
-
-
-
0
6
#
4
#
#
P
P
W
X
X
P
1
1
1
1
1
1
W
X
X
X
1
1
1
1
1
W
D
1
1
1
1
1
1
1
1
D
D
R (
R (
R (
M
F
R (
R
R
F
(
(
F
S
S (
C
d
C
C
S
E
E
R
R
O
s e
s e
s e
s e
R (
R (
8 4
2
S
S
S
S
D
f i
# 1
S
S
P
o
P
F
F
E
e
e
_ 4
D
D
D
D
e f
D
2
3
m
r e
r e
r e
r e
R
U
U
1
0
e s
e s
L
s e
s e
M
#
#
R
R
R
R
E
e r
A
C
p
C
8 4
e v
e v
e v
e v
2
v r
v r
r e
r e
H
A
A
A
A
#
i l
4
M
L
n
L
D
) d
) d
) d
) d
M
D
m
e v
e v
e
e
_
z
M
M
M
M
i t
K
K
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) d
_
4
D
E
l a
e
H
E
0
T
) d
) d
O
8
n
1 1
0 1
9
8
S
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z
S
#
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e
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e
n
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C
T
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b
P I
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P
T
P I
b (
I T
T
u r
o
I T
I
O
" e
h t
O
N
O
N
a
n
N
d
5
Byte 4: SDRAM , 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
t i
t i
t i
t i
t i
T I
T I
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
I P
I P
I P
8 2
9 2
2 3
4 3
5 3
7 3
8 3
1 3
N
2 1
0 1
3 1
1 1
7
8
N
-
-
N
-
-
-
-
-
-
-
-
#
#
#
P
P
P
W
W
1
1
1
1
1
1
1
1
W
X
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
D
D
D
S
S
S
S
S
S
S
S
R (
F
P
P
P
P
P
P
D
D
D
D
D
D
D
D
R
R
R
R
R
R
R
R
S
C
C
C
C
C
C
R
R
R
R
R
R
R
R
e
e
e
e
e
e
e
e
s e
# 0
C I
C I
C I
C I
C I
C I
e s
e s
e s
e s
e s
e s
e s
e s
A
A
A
A
A
A
A
A
r e
M
M
M
M
M
M
M
M
L
L
L
L
L
L
v r
v r
v r
v r
v r
v r
v r
v r
ICS9248-141
e v
D
K
K
K
K
K
K
D
D
d e
d e
d e
d e
d e
d e
d e
d e
7
6
5
4
3
2
1
0
) d
_
4
3
2
1
0
E
E
E
F
S
S
S
(
(
(
(
(
(
(
(
C
N
N
N
N
N
N
N
N
C
C
R
t o
t o
t o
t o
t o
t o
t o
t o
R
R
P I
) e
) e
) e
) e
) e
) e
) e
) e
P I
P I
I T
I T
I T
O
O
O
N
N
N