Appendix C I/O Port Block Diagrams; Port 1 Block Diagrams - Hitachi H8/3637 Hardware Manual

Appendix C I/O Port Block Diagrams

C.1

Port 1 Block Diagrams

V
CC
V
CC
P1
7
V
SS
PDR1: Port data register 1
PCR1: Port control register 1
PMR1: Port mode register 1
PUCR1: Port pull-up control register 1
SBY (low level during reset
and in standby mode)
Figure C.1 (a) Port 1 Block Diagram (Pin P1
Internal
data bus
PUCR1
7
PMR1
7
PDR1
7
PCR1
7
)
7
Timer F module
TMIF
IRQ
3
375