W83787IF Datasheet, PDF (19/123 Pages) Winbond – WINBOND I/O WITH SERIAL-INFRARED SUPPORT

W83787IF
Table 1-2:
SOUTA
HURAS1
L
L
H
H
UART A
DTRB
HURAS0
L
COM4 (2E8)
H
COM3 (3E8)
L
COM1 (3F8) (Default)
H
Disabled
SOUTB
HURBS
L
L
H
H
UART B
RTSB
HURBS0
L
COM3 (3E8)
H
COM4 (2E8)
L
COM2 (2F8) (Default)
H
Disabled
Table 1-3 :
PARALLEL PORT
RTSA
HPRTS1
L
L
H
H
DTRA
HPRTS0
L
H
L
H
LPT3 (3BC)
LPT2 (278)
LPT1 (378) (Default)
Disabled
Note: When the parallel port is disabled, the eight function modes (W83757 mode, EXTFDD mode, EXTADP mode, EXT2FDD
mode, JOYSTICK mode, EPP mode, ECP mode, and ECP/EPP mode) are all inhibited.
Table 1-4 :
PIN
W83787F/777F
1 nRESIDE
2 PDBDIR/nFDCEN
3 PDCIN
42 SINB
43 SOUTB/HURBS1
91 nDBENL/ABCHG
92 nDBENH/FADSEL
93 nIOCS16
94 nCS0/nIDEEN
95 nCS1/HADSEL
96 IDED7
W83787IF
nRESIDE/IRRX3
PDBDIR/IRTX2/nFDCEN
PDCIN/IRRX2
SINB/IRRX1
SOUTB/IRTX1/HURBS1
nDBENL/nIDBEN/GIOSEL
nDBENH/GIO0/URIRSEL
nIOCS16
nCS0/IRRX4/nIDEEN
nCS1/IRTX3/HADSEL
IDED7/GIO1
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Publication Release Date:Sep 1995
Revision A1