w83977eg Winbond Electronics Corp America, w83977eg Datasheet - Page 35
w83977eg
Manufacturer Part Number
w83977eg
Description
Winbond Isa I/o W83977ef W83977eg
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977EG.pdf
(142 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
w83977eg-AW
Manufacturer:
WINBOND
Quantity:
381
Company:
Part Number:
w83977eg-AW
Manufacturer:
Nuvoton Technology Corporation of America
Quantity:
10 000
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TRAK0#(Bit 4):
This bit indicates the value of TRAK0# input.
HEAD (Bit 3):
This bit indicates the complement of HEAD# output.
0
1
INDEX#(Bit 2):
This bit indicates the value of INDEX# output.
WP#(Bit 1):
0
1
DIR (Bit 0)
This bit indicates the direction of head movement.
0
1
In PS/2 Model 30 mode, the bit definitions for this register are as follows:
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
1
side 0
side 1
outward direction
inward direction
side 1
side 0
disk is write-protected
disk is not write-protected
7
6
5
4
W83977EF-AW/W83977EG-AW
3
2
-33-
1
0
DIR#
WP
INDEX
HEAD#
TRAK0
STEP F/F
INIT PENDING
DRQ
Publication Release Date: Apr. 2006
Revision 1.2
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