Datasheet

Appendix C I/O Port Block Diagrams
Rev.7.00 Feb. 14, 2007 page 1079 of 1108
REJ09B0089-0700
C.6 Port B
R
PBnPCR
C
QD
Reset
WPCRB
Reset
WDRB
R
C
QD
PBn
RDRB
RPORB
Internal address bus
PBnDR
Reset
WDDRB
R
C
QD
PBnDDR
RPCRB
Mode 7
Modes 4 to 6
Internal data bus
Modes 4 and 5
Modes 6 and 7
Legend:
WDDRB: Write to PBDDR
WDRB: Write to PBDR
WPCRB: Write to PBPCR
RDRB: Read PBDR
RPORB: Read port B
RPCRB: Read PBPCR
Note: n = 0 to 7
Figure C.6 Port B Block Diagram (Pins PB0 to PB7)