W83787IF Datasheet, PDF (80/123 Pages) Winbond – WINBOND I/O WITH SERIAL-INFRARED SUPPORT

W83787IF
GIO1 ADR MODE1 ~ 0
00
01
10
11
Decode Mode
1 byte decode (Compare GIO1ADR10~0 with SA10~0)
2 bytes decode (Compare GIO1ADR10~1 with SA10~1)
4 bytes decode (Compare GIO1ADR10~2 with SA10~2)
8 bytes decode (Compare GIO1ADR10~3 with SA10~3)
Bit 5 ~ Bit 3: Reserved.
GIO1ADR10~8 (Bit 2 ~ Bit0):
These 3 bits select GIO1 address bit 10 ~ bit 8, another GIO1 address bit 7 ~ bit 0 are defined in
CR12 bit 7 ~ bit 0.
7.2.20 Configuration Register 14H (CR14) EFER = 89H, EFIR = 14H (R/W)
When 89H is loaded into EFER and 14H is loaded into EFIR, the CR14 register can be accessed
through EFDR. The bit definitions are as follows:
7 65 4 3 210
GDA0IPI
GDA0OPI
GCS0IOW
GCS0IOR
GIO0 CS TYPE
GIOP0MD0
GIOP0MD1
GIOP0MD2
Notes:
GIOP0MD2~0 (Bit 7 ~ Bit 5):
These three bits define GIO0 pin mode, that is either Chip-Select or Data Port, as shown in following
table.
- 80 -
Publication ReleaseDate:Sep 1995
Revision A1