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參數(shù)資料
| 型號： | W83193R-02 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | XO, clock |
| 英文描述： | 83.3 MHZ 3-DIMM CLOCK |
| 中文描述： | 83.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁數(shù)： | 7/19頁 |
| 文件大小： | 237K |
| 代理商： | W83193R-02 |
W83193R-01
PRELIMINARY
Publication Release Date: May 1998
Revision 0.20
- 7 -
Bytes sequence order for I
2
C controller :
Clock Address
A(6:0) & R/W
Ack
8 bits dummy
Command code
Ack
8 bits dummy
Byte count
Ack
Byte0,1,2...
until Stop
7.3 SERIAL CONTROL REGISTERS
The Pin column lists the affected pin number and the @PowerUp column gives the state at true
power up. Registers are set to the values shown only on true power up. "Command Code" byte and
"Byte Count" byte must be sent following the acknowledge of the Address Byte. Although the data
(bits) in these two bytes are considered "don't care", they must be sent and will be acknowledge.
After that, the below described sequence (Register 0, Register 1, Register 2, ....) will be valid and
acknowledged.
7.3.1 Register 0: CPU Frequency Select Register (1 = enable, 0 = Stopped)
Bit
7
6
5
4
3
@PowerUp
1
1
1
1
0
Pin
-
-
-
-
-
Description
FTS(for frequency table selection by software via I
2
C)
FS2 (for frequency table selection by software via I
2
C)
FS1 (for frequency table selection by software via I
2
C)
FS0 (for frequency table selection by software via I
2
C)
0 = Selection by hardware
1 = Selection by software I
2
C
Reserved
Bit1 Bit0
1 1 Tri-state all outputs
1 0
±
0.6% Spread Spectrum
0 1
±
1.5% Spread Spectrum
0 0 Normal
2
1
0
x
0
0
n/a
-
FUNCTION TABLE
Function
Description
Tri-State
Normal
Outputs
SDRAM
Hi-Z
CPU
CPU
Hi-Z
see table
PCI
Hi-Z
REF
Hi-Z
14.318
IOAPIC
Hi-Z
14.318
see table
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W83193R-04 | 83.3 MHZ 3-DIMM CLOCK |
| W83193R-04A | 83.3 MHZ 3-DIMM CLOCK |
| W83194AR-73 | 150MHZ CLOCK FOR WHITNEY CHIPSET |
| W83194AR-96 | 200MHZ CLOCK FOR WHITNEY CHIPSET |
| W83194AR-W | 150MHZ CLOCK FOR WHITNEY CHIPSET |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W83193R-04 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:83.3 MHZ 3-DIMM CLOCK |
| W83193R-04A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:83.3 MHZ 3-DIMM CLOCK |
| W83194AR-73 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:150MHZ CLOCK FOR WHITNEY CHIPSET |
| W83194AR-96 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:200MHZ CLOCK FOR WHITNEY CHIPSET |
| W83194AR-W | 制造商:WINBOND 制造商全稱:Winbond 功能描述:150MHZ CLOCK FOR WHITNEY CHIPSET |
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