W83627SF-AW Winbond, W83627SF-AW Datasheet - Page 13

• Manufacturer Part Number: W83627SF-AW
• Manufacturer: Winbond

Specifications of W83627SF-AW

• Pin Count: 128
• Lead Free Status / RoHS Status: Not Compliant

FDC Interface, continued
4.3
SYMBOL
DSKCHG#
SYMBOL
SLCT
RDATA#
HEAD#
PE
Multi-Mode Parallel Port
PIN
31
32
PIN
15
16
17
OD
OD
OD
OD
OD
IN
IN
I/O
I/O
IN
IN
cs
cs
12
12
12
12
24
t
t
The read data input signal from the FDD. This input pin is
pulled up internally by a 1 K
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
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 K  r esistor. The resistor can be disabled by
bit 7 of L0-CRF0 (FIPURDWN).
PRINTER MODE:
An active high input on this pin indicates that the printer is
selected. Refer to the description of the parallel port for
definition of this pin in ECP and EPP mode.
EXTENSION FDD MODE: WE2#
This pin is for Extension FDD B; its function is the same as
the WE# pin of FDC.
EXTENSION 2FDD MODE: WE2#
This pin is for Extension FDD A and B; its function is the
same as the WE# pin of FDC.
PRINTER MODE:
An active high input on this pin indicates that the printer has
detected the end of the paper. Refer to the description of the
parallel port for the definition of this pin in ECP and EPP
mode.
EXTENSION FDD MODE: WD2#
This pin is for Extension FDD B; its function is the same as
the WD# pin of FDC.
EXTENSION 2FDD MODE: WD2#
This pin is for Extension FDD A and B; its function is the
same as the WD# pin of FDC.
- 13 -

FUNCTION
FUNCTION
Publication Release Date: May 31, 2005

resistor. The resistor can
W83627SF
Revision A1
be