Datasheet

Appendix C I/O Port Block Diagrams
Rev. 6.00 Aug 04, 2006 page 649 of 680
REJ09B0145-0600
P4
2
SCI32 module
Internal data bus
PDR4
2
SCINV3
PCR4
2
SBY
V
SS
PDR4: Port data register 4
PCR4: Port control register 4
SCINV3: Bit 3 of serial port control register (SPCR)
TXD32
TE32
V
CC
Figure C.4 (b) Port 4 Block Diagram (Pin P4
2
)