Appendix C I/O Port Block Diagrams; I/O Port Block - Hitachi H8/3672 Series Hardware Manual

Appendix C I/O Port Block Diagrams

C.1

I/O Port Block

RES goes low in a reset, and SBY goes low in a reset and in standby mode.
Internal data bus
TRGV
Legend
PUCR: Port pull-up control register
PMR:
PDR:
PCR:
Rev. 1.0, 03/01, page 260 of 280
PUCR
PMR
PDR
PCR
Port mode register
Port data register
Port control register
Figure C.1 Port 1 Block Diagram (P17)
Pull-up MOS