HD64F3670 Datasheet, PDF (284/305 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

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
PUCR
PMR
Pull-up MOS
PDR
PCR
TRGV
Legend
PUCR: Port pull-up control register
PMR: Port mode register
PDR: Port data register
PCR: Port control register
Figure C.1 Port 1 Block Diagram (P17)
Rev. 1.0, 03/01, page 260 of 280