W83627DHG Datasheet, PDF (137/268 Pages) Winbond – WINBOND LPC I/O

W83627DHG
INDEX#(Bit 2):
This bit indicates the value of the INDEX# output.
WP#(Bit 1):
0 disk is write-protected
1 disk 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:
7 6 5 4 3 ²¹ 0
DIR#
WP
INDEX
HEAD#
TRAK0
STEP F/F
DRQ
INIT PENDING
INIT PENDING (Bit 7):
This bit indicates the value of the floppy disk interrupt output.
DRQ (Bit 6):
This bit indicates the value of the DRQ output pin.
STEP F/F (Bit 5):
This bit indicates the complement of the latched STEP# output.
TRAK0 (Bit 4):
This bit indicates the complement of the TRAK0# input.
HEAD# (Bit 3):
This bit indicates the value of the HEAD# output.
0 side 1
1 side 0
INDEX (Bit 2):
This bit indicates the complement of the INDEX# output.
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Publication Release Date: Aug, 22, 2007
Version 1.4