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參數資料
型號: W83877TF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
英文描述: Multi-Function I/O Port Controller(用于個人計算機的多功能輸入/輸出口控制器)
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數: 148/154頁
文件大?。?/td> 821K
代理商: W83877TF
W83877TF
Publication Release Date: March 1998
- 122 -
Version 0.61
Bit
Name
Description
0-7
TMR_VAL
This read-only field returns the running count of the power management timer.
This is a 24-bit counter that runs off of a 3.579545 MHZ clock, and counts
while in the system working state. The timer is reset and then continues
counting until the CLKIN input the the chip is stopped. If the clock is restarted
without a MR reset, then the counter will continue counting from where it
stopped. The TMR_STS bit is set any time the last bit of the timer (bit 23)
goes from 0 to 1 or from 1 to 0. If the TMR_EN bit is set, the setting of the
TMR_STS bit will generate an SCI interrupt.
8.4.11 Power Management 1 Timer 3 (PM1TMR3)
Register Location:
<CR33>+AH System I/O Space
Default Value:
00h
Attribute:
Read only
Size:
8 bits
1
2
3
4
5
6
7
0
TMR_VAL16
TMR_VAL17
TMR_VAL18
TMR_VAL19
TMR_VAL20
TMR_VAL21
TMR_VAL22
TMR_VAL23
Bit
Name
Description
0-7
TMR_VAL
This read-only field returns the running count of the power management timer.
This is a 24-bit counter that runs off of a 3.579545 MHZ clock, and counts
while in the system working state. The timer is reset and then continues
counting until the CLKIN input the the chip is stopped. If the clock is restarted
without a MR reset, then the counter will continue counting from where it
stopped. The TMR_STS bit is set any time the last bit of the timer (bit 23)
goes from 0 to 1 or from 1 to 0. If the TMR_EN bit is set, the setting of the
TMR_STS bit will generate an SCI interrupt.
相關PDF資料
PDF描述
W83971D AC97 AUDIO CODEC
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W83977F PLUG & PLAY 1.0A COMPLIANT
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相關代理商/技術參數
參數描述
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