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參數(shù)資料
| 型號： | CY24202 |
| 英文描述： | Clocks and Buffers |
| 中文描述： | 時鐘和緩沖器 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大小： | 150K |
| 代理商： | CY24202 |
CY24239
Document #: 38-07038 Rev. **
Page 8 of 15
Note:
2.
CPU and PCI frequency selections are listed in
Table 2
and
Table 6
.
Table 6. Additional Frequency Selections through Serial Data Interface Data Bytes
Input Conditions
Data Byte 0, Bit 3 = 1
Bit 2
SEL_3
SEL_2
SEL_1
1
1
1
1
1
1
1
1
0
1
1
0
1
0
1
1
0
1
1
0
0
1
0
0
0
1
1
0
1
1
0
1
0
0
1
0
0
0
1
0
0
1
0
0
0
0
0
0
Output Frequency
Spread Spectrum
CPU, SDRAM
Clocks (MHz)
91.66
75.0
100.0
83.3
66.6
105.0
110.0
133.3
91.66
75.0
100.0
83.3
91.66
75.0
100.0
83.3
PCI Clocks
(MHz)
30.5
25.0
33.3
27.76
33.3
26.3
27.5
33.3
30.5
25.0
33.3
27.76
30.5
25.0
33.3
27.76
Percentage
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
–
1.2%
–
1.2%
–
1.2%
–
1.2%
–
2.4%
–
2.4%
–
2.4%
–
2.4%
Bit 6
Bit 5
Bit 4
SEL_0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Table 7. Select Function for Data Byte 0, Bits 0
Function
Input Conditions
Data Byte 0
Bit 0
0
1
Output Conditions
CPU_F, 1:2
Note 2
Hi-Z
PCI_F,
PCI0:5
Note 2
Hi-Z
REF0:1,
IOAPIC0,_F
14.318 MHz
Hi-Z
48MHZ
48 MHz
Hi-Z
24MHZ
24 MHz
Hi-Z
Normal Operation
Three-state
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相關(guān)代理商/技術(shù)參數(shù) |
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| CY24204ZC-4 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:MediaClock⑩ DTV, STB Clock Generator |
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