Datasheet

Appendix C I/O Port Block Diagrams
Rev. 8.00 Mar. 09, 2010 Page 618 of 658
REJ09B0042-0800
P3
n
V
CC
V
CC
PUCR3
n
Internal data bus
PMR3
n
PDR3
n
PCR3
n
SBY
V
SS
PDR3: Port data register 3
PCR3: Port control register 3
PMR3: Port mode register 3
PUCR3: Port pull-up control register 3
n = 2 and 1
TMOFH (P3
2
)
TMOFL (P3
1
)
Figure C.2(d) Port 3 Block Diagram (Pins P3
2
and P3
1
)