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參數(shù)資料
| 型號： | W48S101-04 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Spread Spectrum Motherboard Frequency Generator(寬頻譜主板頻率發(fā)生器) |
| 中文描述： | 擴頻主板頻率發(fā)生器（寬頻譜主板頻率發(fā)生器） |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 143K |
| 代理商： | W48S101-04 |
W48S101-04
PRELIMINARY
6
Writing Data Bytes
Each bit in the data bytes controls a particular device function
except for the
“
reserved
”
bits, which must be written as a logic
0. Bits are written MSB (most significant bit) first, which is bit
7.
Table 4
gives the bit formats for registers located in Data
Bytes 3
–
6.
Table 5
details additional frequency selections that are avail-
able through the serial data interface.
Table 6
details the select functions for Byte 3, bits 1 and 0.
Table 4. Data Bytes 3
–
6 Serial Configuration Map
Affected Pin
Pin No.
Pin Name
Data Byte 3
7
--
6
--
5
--
4
--
3
--
Bit(s)
Control Function
Bit Control
Default
0
1
--
--
--
--
--
(Reserved)
SEL_2
SEL_1
SEL_0
BYT0_FS#
--
--
0
0
0
0
0
Refer to
Table 5
Refer to
Table 5
Refer to
Table 5
Frequency Controlled
by external SEL100/
66# pin
--
Function (See
Table 6
for function details)
Normal Operation
Test Mode
Spread Spectrum on (See
Table 5
for frequency and
spread selections. ±0.5% modulation)
All Outputs Three-stated
Frequency Controlled
by BYT0 SEL (2:0)
2
--
--
--
--
(Reserved)
Bit 1
0
0
1
--
0
00
1
–
0
Bit 0
0
1
0
1
1
Data Byte 4
7
6
5
4
3
2
1
0
Data Byte 5
7
6
5
4
3
2
1
0
Data Byte 6
7
6
5
4
3
2
1
0
--
23
--
--
35
36
39
40
--
(Reserved)
Clock Output Disable
(Reserved)
(Reserved)
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
--
--
0
1
0
0
1
1
1
1
24/48MHz
--
--
CPU3
CPU2
CPU1
CPU0
Low
--
--
Low
Low
Low
Low
Active
--
--
Active
Active
Active
Active
7
PCICLK_F
PCI7
PCI6
PCI5
PCI4
PCI3
PCI2
PCI1
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Clock Output Disable
Low
Low
Low
Low
Low
Low
Low
Low
Active
Active
Active
Active
Active
Active
Active
Active
1
1
1
1
1
1
1
1
17
16
14
13
11
10
8
--
--
44
45
--
47
2
1
--
--
(Reserved)
(Reserved)
Clock Output Disable
Clock Output Disable
(Reserved)
Clock Output Disable
Clock Output Disable
Clock Output Disable
--
--
--
--
0
0
1
1
0
1
1
1
IOAPIC1
IOAPIC0
--
REF2
REF1
REF0
Low
Low
--
Low
Low
Low
Active
Active
--
Active
Active
Active
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PDF描述 |
|---|---|
| W48S101 | Spread Spectrum Motherboard Frequency Generator |
| W48S111-14 | Spread Spectrum Desktop/Notebook System Frequency Generator(寬頻譜桌上型/筆記本系統(tǒng)頻率發(fā)生器) |
| W48S111 | Spread Spectrum Desktop/Notebook System Frequency Generator |
| W48S87-04 | Spread Spectrum 3 DIMM Desktop Clock(寬頻譜3 DIMM桌上型PC機時鐘) |
| W48S87-72H | CPU System Clock Generator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W48S111 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Spread Spectrum Desktop/Notebook System Frequency Generator |
| W48S111-14 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Spread Spectrum Desktop/Notebook System Frequency Generator |
| W48S87 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Desktop/Notebook Frequency Generator |
| W48S87-04 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Spread Spectrum 3 DIMM Desktop Clock |
| W48S87-72 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Desktop/Notebook Frequency Generator |
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