W83787IF Datasheet, PDF (84/123 Pages) Winbond – WINBOND I/O WITH SERIAL-INFRARED SUPPORT

W83787IF
GCS1IOR, GCS1IOW (Bit 3, Bit2):
These two bits define GIO1 Chip Select Active Mode, that is in IOR , or IOW , or IOR / IOW , as
shown in the following table.
GCS1IOR
0
GCS1IOW
0
0
1
1
0
1
1
Chip Select Pin Type
The GIOP1 function as a Chip select pin, and will active when
(AEN=L) & (SA10~0 = GIOAD10~0)
The GIOP1 function as a Chip select pin, and will active when
(AEN=L) & (SA10~0 = GIOAD10~0) & (IOW =L)
The GIOP1 function as a Chip select pin, and will active when
(AEN=L) & (SA10~0 = GIOAD10~0) & (IOR =L)
The GIOP1 function as a Chip select pin, and will active when
(AEN=L) & (SA10~0 = GIOAD10~0) & (IOR =L or IOW =L)
GDA1OPI, FDA1IPI (Bit 1, Bit0):
These two bits define GIO1 Data Pin type as shown in the following table.
GDA1OPI
0
GDA1IPI
0
0
1
1
0
1
1
GIOP1 Data Pin Type
The GIOP1 functions as a data pin, and GIOP1 → SD1,
SD1 → GIOP1
The GIOP1 functions as a data pin, and inverse GIOP1 → SD1,
SD1 → GIOP1
The GIOP1 functions as a data pin, and GIOP1 → SD1,
inverse SD1 → GIOP1
The GIOP1 functions as a data pin, and inverse GIOP1 → SD1,
inverse SD1 → GIOP1
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Publication ReleaseDate:Sep 1995
Revision A1