W83787IF Datasheet, PDF (81/123 Pages) Winbond – WINBOND I/O WITH SERIAL-INFRARED SUPPORT

W83787IF
GIOP0M
D2
0
GIOP0MD1~0
00
GIOP0 Pin Mode
Inactive (tri-state)
0
01
Data outport port (SD0 → GIOP0).
When (AEN=L) & (IOR =L) & (SA10~0=GIO0AD10~0), the value of
SD0 will present at GIOP0
0
10
Data input port (SD0 ← GIOP0).
When (AEN=L) & (IOR =L) & (SA10~0=GIO0AD10~0), the value of
GIOP0 will present at SD0
0
11
Data I/O port (SD0 ↔ GIOP0).
1. When (AEN=L) & (IOW =L) & (SA10~0=GIO0AD10~0), the value of
SD0 will present at GIOP0, or
when (AEN=L)&( IOR =L) &(SA10~0=GIO0AD10~0), the value of
GIOP0 will present at SD0
1
XX
Chip Select Pin.
• When (AEN=L) & (IOW =L or IOR =L) & (SA10~0=GIO0AD10~0)
, the pin will be activated. The active level is defined in CR14.bit4
and the IORN or IOWN are defined in CR14.bit3~2.
GIO0 CS TYPE (Bit 4):
This bit define the pin active state when GIOP0 acts as Chip Select pin.
0
Active LOW when (AEN=L) & (IOWN=L or IORN=L) & (SA10~0=GIO0AD10~0).
1
Active HIGH when (AEN=L) & (IOWN=L or IORN=L) & (SA10~0=GIO0AD10~0).
GCS0IOR, GCS0IOW (Bit 3, Bit2):
These two bits define GIOP0 Chip Select Active Mode, that is in IORL, or IOWL, or IOR/WN, as
shown in the following table.
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Publication ReleaseDate:Sep 1995
Revision A1