w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 21

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

Multi-Mode Parallel Port, continued
PD0
INIT
STB
AFD
SYMBOL
PIN
33
35
36
31
I/O24t
OD
OD
OD
OD
OD
OD
OD
I/O
INt
INt
-
-
12
12
12
12
12
12
12
PRINTER MODE:
Output line for the printer initialization. This pin is pulled high internally.
Refer to the description of the parallel port for the definition of this pin in
ECP and EPP mode.
EXTENSION FDD MODE:
This pin is for Extension FDD B; its function is the same as the
of FDC.
EXTENSION 2FDD MODE:
This pin is for Extension FDD A and B; its function is the same as the
PRINTER MODE:
An active low output from this pin causes the printer to auto feed a line
after a line is printed. This pin is pulled high internally. Refer to the
description of the parallel port for the definition of this pin in ECP and
EPP mode.
EXTENSION FDD MODE: DRVDEN0
This pin is for Extension FDD B; its function is the same as the
DRVDEN0 pin of FDC.
EXTENSION 2FDD MODE: DRVDEN0
This pin is for Extension FDD A and B; its function is the same as the
DRVDEN0 pin of FDC.
PRINTER MODE:
An active low output is used to latch the parallel data into the printer.
This pin is pulled high internally. Refer to the description of the parallel
port for the definition of this pin in ECP and EPP mode.
EXTENSION FDD MODE: This pin is a tri-state output.
EXTENSION 2FDD MODE: This pin is a tri-state output.
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.
EXTENSION FDD MODE:
This pin is for Extension FDD B; its function is the same as the
pin of FDC. It is pulled high internally.
EXTENSION 2FDD MODE:
This pin is for Extension FDD A and B; its function is the same as the
DIR
INDEX
pin of FDC.
pin of FDC. It is pulled high internally.
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INIT
AFD
STB
W83977ATF/W83977ATG
DIR2
INDEX2
DIR2
INDEX2
FUNCTION
Publication Release Date: May 2006
Revision 0.6
DIR
INDEX
pin