Datasheet

Rev.6.00 Oct.28.2004 page 992 of 1016
REJ09B0138-0600H
C.8 Port B Block Diagram
R
PBnPCR
C
QD
Reset
WPCRB
Reset
WDRB
R
C
QD
PB
n
RDRB
RPORB
Internal data bus
Internal address bus
WDDRB:
WDRB:
WPCRB:
RDRB:
RPORB:
RPCRB:
n = 0 to 7
Write to PBDDR
Write to PBDR
Write to PBPCR
Read PBDR
Read port B
Read PBPCR
PBnDR
Reset
WDDRB
R
Mode
4/5
C
QD
PBnDDR
RPCRB
Mode 7
Mode 4/5/6
Legend:
Figure C-8 Port B Block Diagram (Pin PB
0
to PB
7
)