841
PBR
Internal
data bus
RES
Single mode
MCU mode 0
MCU mode 1
MCU mode 2
A17
PFC
SBYCR
Standby
Bus right
release
PBW
PBR: Port B read signal
PBW: Port B write signal
RES: Reset signal
PB1DR
Q
C
D
R
PB1/
A17
Q PB1MD
Q PB1IOR
Q HIZ
Figure B.16 PB1/A17 Block Diagram
