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參數(shù)資料
型號: W83977TF
廠商: WINBOND ELECTRONICS CORP
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: 多功能I / O端口控制器(用于個人計算機的多功能輸入/輸出口控制器)
文件頁數(shù): 38/160頁
文件大小: 1012K
代理商: W83977TF
W83977TF
PRELIMINARY
Publication Release Date: April 1998
-30-
Revision 0.62
This bit indicates the complement of
HEAD
output.
0
side 0
1
side 1
INDEX (Bit 2):
This bit indicates the value of INDEX output.
WP
(Bit 1):
0disk is write-protected
1disk is not write-protected
DIR (Bit 0)
This bit indicates the direction of head movement.
0
outward direction
1
inward direction
In PS/2 Model 30 mode, the bit definitions for this register are as follows:
1
2
3
4
5
6
7
0
WP
INDEX
HEAD
TRAK0
STEP F/F
DRQ
INIT PENDING
DIR
INIT PENDING (Bit 7):
This bit indicates the value of the floppy disk interrupt output.
DRQ (Bit 6):
This bit indicates the value of DRQ output pin.
STEP F/F (Bit 5):
This bit indicates the complement of latched STEP output.
TRAK0 (Bit 4):
This bit indicates the complement of TRAK0 input.
HEAD (Bit 3):
This bit indicates the value of HEAD output.
0
side 1
1
side 0
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相關代理商/技術參數(shù)
參數(shù)描述
W83977TF(EOL) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:W83877TF plus KBC. CIR. RTC
W83977TF_98 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83977TF-A 制造商:WINBOND 制造商全稱:Winbond 功能描述:I/O chip disk drive adapter
W83977TF-AW 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83977TF-P 制造商:WINBOND 制造商全稱:Winbond 功能描述:I/O chip disk drive adapter