w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 19

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

4.4
4.5
The following pins have alternate functions, which are controlled by CR28 and L3-CRF0.
IRRX
IRTX
SLCT
PE
BUSY
SYMBOL
SYMBOL
Infrared Interface
Multi-Mode Parallel Port
PIN
PIN
37
38
18
19
21
OUT
OD12
OD12
OD
OD
OD
OD
IN
I/O
I/O
INt
IN
IN
cs
t
12
12
t
12
12
12t
Infrared Receiver input.
Infrared Transmitter Output.
PRINTER MODE: SLCT
An active high input on this pin indicates that the printer is selected. This
pin is pulled high internally. Refer to the description of the parallel port
for 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: PE
An active high input on this pin indicates that the printer has detected the
end of the paper. 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: BUSY
An active high input indicates that the printer is not ready to receive data.
This pin is pulled high internally. Refer to the description of the parallel
port for 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
MOB
WE
WD
pin of FDC.
pin of FDC.
pin of FDC.
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W83977ATF/W83977ATG
MOB2
WE2
WD2
MOB2
WE2
WD2
FUNCTION
FUNCTION
Publication Release Date: May 2006
Revision 0.6
MOB
WE
WD
pin
pin
pin