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參數資料
| 型號： | C9726AY |
| 英文描述： | ST92141 - 8/16 BIT MCU FOR 3-PHASE AC MOTOR CONTROL |
| 中文描述： | CPU系統(tǒng)時鐘發(fā)生器| SSOP封裝| 48PIN |塑料 |
| 文件頁數： | 6/16頁 |
| 文件大?。?/td> | 119K |
| 代理商： | C9726AY |
C9726
Clock Generator for VIA VT8371/Athlon (K7) Chipset Systems
Approved Product
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07047 Rev. **
05/03/2001
Page 6 of 16
Serial Control Registers (Cont.)
Byte 2: PCI Control Register (1=Enable,
0=Stopped)
Bit
7
6
5
4
3
2
1
0
@Pup
0
1
0
1
1
1
1
1
Pin#
-
7
-
13
12
11
10
8
Pin Description
Reserved
PCI0
Reserved
PCI5
PCI4
PCI3
PCI2
PCI1
Byte 3: SDRAM Control Register (1=Enable,
0=Stopped)
Bit
@Pup
Pin#
Pin
Description
Reserved
0 = output 24MHz.
1 = output 48MHz.
48MHz
24_48MHZ
Reserved
SDRAM(8:11)
SDRAM(4:7)
SDRAM(0:3)
7
6
0
0
-
25
5
4
3
2
1
0
1
1
0
1
1
1
26
25
-
17,18,20,21
28,29,31,32
34,35,37,38
Byte 4: Dial-a-Frequency
Register
Bit
7
6
5
4
3
2
1
0
@Pup
0
0
0
0
0
0
0
0
Pin#
-
-
-
-
-
-
-
-
Pin Description
N7, MSB
N6
N5
N4
N3
N2
N1,
N0, LSB
Byte 5: Register
Bit
7
6
5
4
3
2
1
0
@Pup
0
0
0
0
0
0
1
1
Pin#
-
-
-
-
-
-
46
2
Pin Description
S3 Readback
S2 Readback
S0 Readback
MODE Readback
S1 Readback
Reserved
REF1
REF0
Byte 6: Reserved Register
Bit
7
6
5
4
3
2
1
0
@Pup
0
0
0
0
0
0
0
0
Pin#
-
-
-
-
-
-
-
-
Pin Description
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Byte 7: Dial-a-Frequency
Register
Bit
7
6
5
4
3
2
1
0
@Pup
0
0
0
0
0
0
0
0
Pin#
-
-
-
-
-
-
-
-
Pin Description
R6, MSB
R5
R4
R3
R2
R1
R0, LSB
Enable SMBUS N&R
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