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參數(shù)資料
| 型號： | ICS9248YF-171-T |
| 英文描述： | AMD - K7TM System Clock Chip |
| 中文描述： | AMD公司- K7TM系統(tǒng)時(shí)鐘芯片 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大小： | 210K |
| 代理商： | ICS9248YF-171-T |
5
ICS9248-171
Advance Information
Third party brands and names are the property of their respective owners.
Byte 1: CPU, Active/Inactive Register
(1= enable, 0 = disable)
Byte 2: PCI, Active/Inactive Register
(1= enable, 0 = disable)
T
7
6
5
4
3
2
1
0
I
B
t
B
t
B
t
B
t
B
t
B
t
B
t
B
t
B
#
N
-
0
2
1
1
1
1
1
1
I
P
D
W
X
1
1
1
1
1
1
1
P
N
O
I
T
P
I
R
C
S
E
D
#
K
K
K
K
K
K
K
E
L
L
L
L
L
L
L
D
C
C
C
C
C
C
C
I
O
I
C
C
C
C
C
C
C
M
P
P
P
P
P
P
P
5
4
3
2
1
0
_
9
8
5
4
3
2
I
I
I
I
I
F
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.
T
I
B
#
N
I
P
D
W
P
N
P
O
O
o
w
#
t
B
p
o
I
T
S
P
G
O
T
y
o
l
w
P
_
I
R
G
D
&
S
_
G
s
k
c
#
P
C
S
1
E
0
M
A
D
0
o
O
T
S
y
o
2
M
3
M
4
M
5
M
6
M
7
M
D
=
7
t
B
-
0
l
B
s
o
)
P
G
A
w
k
#
c
l
6
(
T
)
R
1
6
(
S
p
)
A
R
D
D
1
k
c
o
R
D
S
R
D
S
R
D
S
R
D
S
R
D
S
R
D
S
t
B
o
6
(
1
t
p
=
A
D
=
M
_
G
s
A
A
A
A
A
A
P
6
t
B
-
1
5
4
3
2
1
0
t
t
t
t
t
t
B
B
B
B
B
B
9
8
7
6
3
2
3
3
3
3
3
3
1
1
1
1
1
1
Byte 4: Reserved , Active/Inactive Register
(1= enable, 0 = disable)
Byte 5: Peripheral , Active/Inactive Register
(1= enable, 0 = disable)
Byte 3: SDRAM, Active/Inactive Register
(1= enable, 0 = disable)
T
I
B
B
B
B
B
B
B
B
B
#
N
-
-
-
-
-
-
-
-
I
P
D
W
0
0
0
0
0
1
1
1
P
N
O
I
T
P
I
R
C
N
N
N
N
N
N
N
N
S
(
(
(
(
(
(
(
(
E
d
d
d
d
d
d
d
d
D
e
e
e
e
e
e
e
e
7
6
5
4
3
2
1
0
)
)
)
)
)
)
)
)
v
R
v
R
v
R
v
R
v
R
v
R
v
R
v
R
Byte 6: Peripheral , Active/Inactive Register
(1= enable, 0 = disable)
Note: Don’t write into this register, writing into this
register can cause malfunction
T
7
6
5
4
3
2
1
0
I
B
t
B
t
B
t
B
t
B
t
B
t
B
t
B
t
B
#
N
-
-
-
1
3
0
3
7
2
6
2
5
2
I
P
D
W
X
X
X
1
1
1
1
1
P
N
O
I
T
P
I
R
C
S
E
D
#
#
#
0
1
2
R
R
R
R
R
S
S
S
D
D
D
D
D
F
F
F
S
S
S
S
S
8
9
1
1
1
M
M
M
M
M
A
A
A
A
A
0
1
2
T
7
6
5
4
3
I
B
B
B
B
B
B
#
N
-
0
1
9
2
2
3
4
I
P
D
W
X
1
1
1
1
P
N
O
I
T
P
I
R
C
S
E
D
t
t
t
t
t
#
P
P
3
S
G
G
8
D
E
a
d
P
C
P
C
F
A
A
4
S
R
1
0
H
A
0
t
C
U
C
U
z
M
-
M
R
F
0
2
t
B
7
1
X
2
r
1
=
C
X
1
,
T
1
T
1
=
K
K
X
P
1
0
t
t
B
B
6
4
,
4
1
1
0
C
K
L
C
U
L
L
5
4
T
7
6
5
4
3
2
1
0
I
B
B
B
B
B
B
B
B
B
#
N
-
-
-
-
-
-
-
2
4
I
P
D
W
1
1
1
1
1
1
1
1
P
N
O
I
T
P
I
R
C
S
E
D
d
d
d
d
d
d
d
1
t
t
t
t
t
t
t
t
e
e
e
e
e
e
e
M
v
R
v
R
v
R
v
R
v
R
v
R
v
R
R
D
S
A
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