CP80S54 Datasheet, PDF (16/47 Pages) List of Unclassifed Manufacturers – EPROM/ROM-Based 8-Bit Microcontroller Series

IOB0/INT :
IOST R
Data bus
D
Q
IOST
Latch
> EN Q
WR PORT
D
Q
DATA
Latch
> EN Q
CP80S54/56
I/O PIN
RD PORT
Set PBIF
WUBn
EIS
Q
D
Latch
Q EN<
INT
INTEDG
EIS
Pull-high/pull-down and open-drain are not shown in the figure
IOB7 ~ IOB1 :
IOST R
Data bus
D
Q
IOST
Latch
> EN Q
WR PORT
D
Q
DATA
Latch
> EN Q
I/O PIN
RD PORT
Set PBIF
WUBn
Q
D
Latch
Q EN<
Pull-high/pull-down and open-drain are not shown in the figure
Rev0.1 Nov 30, 2005
P.16/CP80S54/S56