w83l517g Winbond Electronics Corp America, w83l517g Datasheet - Page 11
w83l517g
Manufacturer Part Number
w83l517g
Description
Winbond Lpc I/o For Notebook W83l517d/ W83l517d-f
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83L517G.pdf
(133 pages)
- Current page: 11 of 133
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4.2
DRVDEN0
DSKCHG#
SYMBOL
RDATA#
TRAK0#
INDEX#
HEAD#
STEP#
MOA#
DSA#
DIR#
WD#
WE#
WP#
FDC Interface
100
PIN
99
98
97
96
95
94
93
92
91
3
2
1
OD
OD
OD
OD
OD
OD
OD
OD
IN
IN
IN
IN
IN
I/O
cs
cs
cs
cs
cs
24
24
24
24
24
24
24
24
Drive Density Select bit 0.
This Schmitt-triggered input from the disk drive is active low
when the head is positioned over the beginning of a track
marked by an index hole. This input pin is pulled up internally
by a 1 KΩ resistor. The resistor can be disabled by bit 7 of L0-
CRF0 (FIPURDWN).
Drive Select A. When set to 0, this pin enables disk drive A.
This is an open drain output.
Diskette change. This signal is active low at power on and
whenever the diskette is removed. This input pin is pulled up
internally by a 1 KΩ resistor. The resistor can be disabled by bit
7 of L0-CRF0 (FIPURDWN).
Motor A On. When set to 0, this pin enables disk drive 0. This
is an open drain output.
Direction of the head step motor. An open drain output.
Logic 1 = outward motion
Logic 0 = inward motion
Step output pulses. This active low open drain output produces
a pulse to move the head to another track.
Write data. This logic low open drain writes pre-compensation
serial data to the selected FDD. An open drain output.
Write enable. An open drain output.
Track 0.
active low when the head is positioned over the outermost
track. This input pin is pulled up internally by a 1 KΩ resistor.
The resistor can be disabled by bit 7 of L0-CRF0 (FIPURDWN).
Write protected. This active low Schmitt input from the disk
drive indicates that the diskette is write-protected. This input
pin is pulled up internally by a 1 KΩ resistor. The resistor can
be disabled by bit 7 of L0-CRF0 (FIPURDWN).
The read data input signal from the FDD. This input pin is
pulled up internally by a 1 KΩ resistor. The resistor can be
disabled by bit 7 of L0-CRF0 (FIPURDWN).
Head select. This open drain output determines which disk
drive head is active.
Logic 1 = side 0
Logic 0 = side 1
This Schmitt-triggered input from the disk drive is
- 11 -
W83L517D/W83L517D-F
FUNCTION
Publication Release Date: May 23, 2005
Revision 1.0
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