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参数资料
| 型号： | ICS950812YFT |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封装： | 0.300 INCH, MO-118, SSOP-56 |
| 文件页数： | 29/29页 |
| 文件大小： | 253K |
| 代理商： | ICS950812YFT |
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9
ICS950812
0542H—04/08/05
Pin #
Name
0
1
PWD
Bit 7
X
-
Spread Spectrum Bit7
RW
-
X
Bit 6
X
-
Spread Spectrum Bit6
RW
-
X
Bit 5
X
-
Spread Spectrum Bit5
RW
-
X
Bit 4
X
-
Spread Spectrum Bit4
RW
-
X
Bit 3
X
-
Spread Spectrum Bit3
RW
-
X
Bit 2
X
-
Spread Spectrum Bit2
RW
-
X
Bit 1
X
-
Spread Spectrum Bit1
RW
-
X
Bit 0
X
-
Spread Spectrum Bit0
RW
-
X
Affected Pin
Note: Please utilize software utility provided by ICS Application Engineering to configure spread spectrum. Incorrect spread
percentage may cause system failure.
BYTE
13
Control Function
Type
Bit Control
Pin #
Name
0
1
PWD
Bit 7
X
-
(Reserved)
RW
-
X
Bit 6
X
-
(Reserved)
RW
-
X
Bit 5
X
-
Spread Spectrum Bit13
RW
-
X
Bit 4
X
-
Spread Spectrum Bit12
RW
-
X
Bit 3
X
-
Spread Spectrum Bit11
RW
-
X
Bit 2
X
-
Spread Spectrum Bit10
RW
-
X
Bit 1
X
-
Spread Spectrum Bit9
RW
-
X
Bit 0
X
-
Spread Spectrum Bit8
RW
-
X
BYTE
14
Affected Pin
Control Function
Note: Please utilize software utility provided by ICS Application Engineering to configure spread spectrum. Incorrect spread
percentage may cause system failure.
Bit Control
Type
Note: See table 8 for Byte 11-14 default information
Spread Spectrum Enable Procedure
Step 1: Power-up ---- Latched inputs, FS(5:0), set frequency per Hardware default on board. SS is off.
BIOS program set IIC Byte0, bit7 to 1, SS will be enable Spread. Note that Byte 10,
bit 7 is default to 0. This allows all setup to be controlled by the Frequency Select
Tables, 1 and 2.
Step 3: To set up Linear programming and SS% adjust using Byte 11 through 14, the BIOS must set
Byte 10, bit 7 to a 1. This will enable access to Byte 11 and 12, M/N linear programming
and Byte 13 and 14, Spread Spectrum % adjust.
Step 2: After power up, SS% can be changed to the fixed selections shown in Frequency Table 2. This
is achieved by Writing to Byte 4, bit 6/7 (FS5:4) and/or Byte 0 (FS3), The data written
to these bytes will overwrite the existing contents and switch to the desired selection.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS950812YGLFT | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator with 200MHz Differential CPU Clocks |
| ICS950813 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator with 200MHz Differential CPU Clocks |
| ICS950813YFT | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator with 200MHz Differential CPU Clocks |
| ICS950813YGT | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator with 200MHz Differential CPU Clocks |
| ICS950818 | 制造商:ICS 制造商全称:ICS 功能描述:Frequency Generator with 200MHz Differential CPU Clocks |
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