HD6433694 Datasheet, PDF (393/432 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

Appendix B I/O Port Block Diagrams
B.1 I/O Port Block Diagrams
RES goes low in a reset, and SBY goes low in a reset and in standby mode.
Internal data bus
RES SBY
PUCR
PMR
Pull-up MOS
PDR
PCR
IRQ
TRGV
Legend
PUCR: Port pull-up control register
PMR: Port mode register
PDR: Port data register
PCR: Port control register
Figure B.1 Port 1 Block Diagram (P17)
Rev. 4.00, 03/04, page 365 of 400