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參數(shù)資料
| 型號： | ICS950401 |
| 英文描述： | AMD - K8TM System Clock Chip |
| 中文描述： | AMD公司- K8TM系統(tǒng)時鐘芯片 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 108K |
| 代理商： | ICS950401 |
5
ICS950401
0499C—11/01/04
Byte0: Functionality and Frequency Select
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Notes:
1.
Write Disable. A '1' written to this bit after a '1' is written to BYTE0/bit 0 will permanently disable writing to I2C until
the part is powered off. Once the clock generator has been write disabled, the SMBus controller should still accept and
acknowledge subsequent write cycles but it should not modify any of the registers.
2.
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3.
A '1' written to this bit after power-up will enable writing to I2C. Subsequent '0's written to this bit will disable
modification of all registers except this single bit. When a '1' is written to Byte 0 Bit 7, all modification is permanently
disabled until the device power cycles. Block write transactions to the interface will complete, however unless the
interface has been previously unlocked, the writes will have no effect. The effect of writing to this bit does not take effect
until the subsequent block write command.
4.
Clarification on frequency select on power-up:
i. Upon power-up, Byte0, bits (5:1) [FS(4:0)] are set to default hardware settings.
ii. A '1' is written to Byte0, bit 0 to enable software control.
iii. Every time Byte0 is written, frequency input defaults will be affected.
iv. If a '0' is written to Byte0, bit0, the software control is disabled. Disabling software control does not cause the
contents of Byte0
to default back to hardware setting for FS(4:0).
相關(guān)PDF資料 |
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| ICS950402 | AMD - K8 System Clock Chip |
| ICS950402YFLF-T | AMD - K8 System Clock Chip |
| ICS950402YGLF-T | AMD - K8 System Clock Chip |
| ICS950403 | AMD - K8⑩ System Clock Chip |
| ICS950403 | AMD - K8⑩ System Clock Chip |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS950402 | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950402YFLF-T | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950402YGLF-T | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950403 | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8? System Clock Chip |
| ICS950405 | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8 System Clock Chip |
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