833
PAR
Internal
data bus
RES
CK
Single mode
MCU mode 2
MCU mode 1
MCU mode 0
PFC
Standby
PAW
STBCR
PAR: Port A read signal
PAW: Port A write signal
RES: Reset signal
PA15DR
Q
C
D
R
PA15/CK
Q PA15IOR
Q PA15MD
Q HIZ
Figure B.8 PA15/CK Block Diagram
