W83637HF Datasheet, PDF (20/149 Pages) Winbond – LPC I/O

W83637HF
Multi-Mode Parallel Port, continued
SYMBOL PIN
I/O
PD0
42
I/O_12ts
FUNCTION
PRINTER MODE: PD0
Parallel port data bus bit 0. Refer to the description of the
parallel port for the definition of this pin in ECP and EPP mode.
INDEX2#
IN_ts
EXTENSION FDD MODE: INDEX2#
This pin is for Extension FDD B; its function is the same as the
INDEX# pin of FDC. It is pulled high internally.
SLIN#
STEP2#
INIT#
DIR2#
EXTENSION 2FDD MODE: INDEX2#
This pin is for Extension FDD A and B; its function is the same as
the INDEX# pin of FDC. It is pulled high internally.
43 OD_12t PRINTER MODE: SLIN#
OD_12t
Output line for detection of printer selection. Refer to the
description of the parallel port for the definition of this pin in ECP
and EPP mode.
EXTENSION FDD MODE: STEP2#
This pin is for Extension FDD B; its function is the same as the
STEP# pin of FDC.
EXTENSION 2FDD MODE: STEP2#
This pin is for Extension FDD A and B; its function is the same as
the STEP# pin of FDC.
44 OD_12t PRINTER MODE: INIT#
OD_12t
Output line for the printer initialization. Refer to the description of
the parallel port for the definition of this pin in ECP and EPP
mode.
EXTENSION FDD MODE: DIR2#
This pin is for Extension FDD B; its function is the same as the
DIR# pin of FDC.
EXTENSION 2FDD MODE: DIR2#
This pin is for Extension FDD A and B; its function is the same as
the DIR# pin of FDC.
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Publication Release Date: June 25, 2003
Revision 1.3