Datasheet

Appendix C I/O Port Block Diagrams
Rev. 6.00 Aug 04, 2006 page 630 of 680
REJ09B0145-0600
Appendix C I/O Port Block Diagrams
C.1 Block Diagrams of Port 1
V
CC
V
CC
V
SS
PUCR1
n
PMR1
n
PDR1
n
PCR1
n
IRQ
n
−
4/n
*
SBY
(low level
during reset
and in standby
mode)
Internal data bus
Port data register 1
Port control register 1
Port mode register 1
Port pull-up control register 1
P1
n
PDR1:
PCR1:
PMR1:
PUCR1:
* n = 7 to 5 n − 4, n = 4 n
Figure C.1 (a) Port 1 Block Diagram (Pins P1
7
to P1
4
)