參數(shù)資料
型號: W83C554F
英文描述: W83C554F Highly Integrated System I/O Controller for Power PC TM (South Bridge) & UltraDMA/33 IDE Controller QFP 208
中文描述: W83C554F高度集成的系統(tǒng)的I / O控制器的Power PC商標(biāo)(南橋)
文件頁數(shù): 76/159頁
文件大?。?/td> 3991K
代理商: W83C554F
W83C553F
Electrical Specifications
WINBOND SYSTEMS LABORATORY
73
DMA Break Event Enable Register (default = 00h)
Function:
This power management register may only be used while the W83C553F is in x86 mode.
Type
:
Read/Write
Bit Description
:
Bit 7:
DRQ7. Enable DRQ7 as Break Event. When this bit is "1," DRQ7 detection is enabled. Upon
activation, the PMU will de-assert PMACT#.
Bit 6:
DRQ6. Enable DRQ6 as Break Event. When this bit is "1," DRQ6 detection is enabled. Upon
activation, the PMU will de-assert PMACT#.
Bit 5:
DRQ5. Enable DRQ5 as Break Event. When this bit is "1," DRQ5 detection is enabled. Upon
activation, the PMU will de-assert PMACT#.
Bit 4:
DRQ4. Enable DRQ4 as Break Event. When this bit is "1," DRQ4 detection is enabled. Upon
activation, the PMU will de-assert PMACT#.
Bit 3:
DRQ3. Enable DRQ3 as Break Event. When this bit is "1," DRQ3 detection is enabled. Upon
activation, the PMU will de-assert PMACT#.
Bit 2:
DRQ2. Enable DRQ2 as Break Event. When this bit is "1," DRQ2 detection is enabled. Upon
activation, the PMU will de-assert PMACT#.
Bit 1:
DRQ1. Enable DRQ1 as Break Event. When this bit is "1," DRQ1 detection is enabled. Upon
activation, the PMU will de-assert PMACT#.
Bit 0:
DRQ0. Enable DRQ0 as Break Event. When this bit is "1," DRQ0 detection is enabled. Upon
activation, the PMU will de-assert PMACT#.
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