參數(shù)資料
型號(hào)： ICS950812
英文描述： Frequency Generator with 200MHz Differential CPU Clocks
中文描述： 頻率發(fā)生器200MHz的CPU的時(shí)鐘差分
文件頁數(shù)： 9/29頁
文件大?。?/td> 225K
代理商： ICS950812
9
ICS950812
0542G—08/21/03
Pin #
X
X
X
X
X
X
X
X
Name
-
-
-
-
-
-
-
-
0
-
-
-
-
-
-
-
-
1
-
-
-
-
-
-
-
-
PWD
X
X
X
X
X
X
X
X
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Spread Spectrum Bit7
Spread Spectrum Bit6
Spread Spectrum Bit5
Spread Spectrum Bit4
Spread Spectrum Bit3
Spread Spectrum Bit2
Spread Spectrum Bit1
Spread Spectrum Bit0
RW
RW
RW
RW
RW
RW
RW
RW
Affected Pin
Note: Please utilize software utility provided by ICS Application Engineering to configure spread spectrum. Incorrect spread
percentage may cause system failure.
Note: See table 8 for Byte 11-14 default information
BYTE
13
Control Function
Type
Bit Control
Pin #
X
X
X
X
X
X
X
X
Name
-
-
-
-
-
-
-
-
0
-
-
-
-
-
-
-
-
1
-
-
-
-
-
-
-
-
PWD
X
X
X
X
X
X
X
X
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(Reserved)
(Reserved)
RW
RW
RW
RW
RW
RW
RW
RW
Spread Spectrum Bit13
Spread Spectrum Bit12
Spread Spectrum Bit11
Spread Spectrum Bit10
Spread Spectrum Bit9
Spread Spectrum Bit8
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.
Note: See table 8 for Byte 11-14 default information
Bit Control
Type
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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ICS950812CGLFT 功能描述:IC FREQ GEN 200MHZ CLK 56-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:28 系列:- 類型:時(shí)鐘/頻率發(fā)生器 PLL:是 主要目的:Intel CPU 服務(wù)器 輸入:時(shí)鐘 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:3:22 差分 - 輸入:輸出:無/是 頻率 - 最大:400MHz 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:64-TFSOP （0.240"，6.10mm 寬） 供應(yīng)商設(shè)備封裝:64-TSSOP 包裝:管件
ICS950812YFLFT 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator with 200MHz Differential CPU Clocks
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ICS950813 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator with 200MHz Differential CPU Clocks
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