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參數資料
| 型號： | W83194BR-39B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | XO, clock |
| 英文描述： | STEP-LESS 3-DIMM CLOCK |
| 中文描述： | 155 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁數： | 9/20頁 |
| 文件大小： | 276K |
| 代理商： | W83194BR-39B |
W83194BR-39B
PRELIMINARY
Publication Release Date: June 2000
- 9 - Revision 0.46
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
0
1
196.00
198.00
200.00
196.00
198.00
200.00
39.20
39.60
40.00
7.2.1 Register 0: CPU Frequency Select Register (default = 0)
Bit
@PowerUp
Pin
Description
7
0
-
SSEL5 (for frequency table selection by software via I
2
C)
SSEL4 (for frequency table selection by software via I
2
C)
SSEL3 (for frequency table selection by software via I
2
C)
SSEL2 (for frequency table selection by software via I
2
C)
SSEL1 (for frequency table selection by software via I
2
C)
SSEL0 (for frequency table selection by software via I
2
C)
6
0
-
5
0
-
4
0
-
3
0
-
2
0
-
1
0
-
0 = Selection by hardware
1 = Selection by software I
2
C - Bit 7:2
0
0
-
0 = Running
1 = Tristate all outputs
7.2.2 Register 1 : CPU , 48/24 MHz Clock Register (1 = enable, 0 = Stopped)
Bit
@PowerUp
Pin
Description
7
1
-
Reserved
6
1
-
Reserved
5
0
-
0 = Normal
1 = Spread Spectrum enabled
4
0
-
0 = ±0.25% Spread Spectrum Modulation
1 = ±0.5% Spread Spectrum Modulation
3
1
40
SDRAM12 (Active / Inactive)
2
1
-
Reserved
1
1
43
CPUCLK1 (Active / Inactive)
0
1
44
CPUCLK_F (Active / Inactive)
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