Appendix C I/O Port Block Diagrams
V
V
CC
CC
P3
5
V
SS
PDR3: Port data register 3
PCR3: Port control register 3
PUCR3: Port pull-up control register 3
SCINV1: Bit 1 of serial port control register (SPCR)
Rev. 6.00 Aug 04, 2006 page 640 of 680
REJ09B0145-0600
SBY
Figure C.3 (b) Port 3 Block Diagram (Pin P3
PUCR3
5
SCINV1
PDR3
5
PCR3
5
)
5
SCI31 module
TE31
TXD31