HD64F3670 Datasheet, PDF (293/323 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

Internal data bus
PUCR
PDR
PCR
Pull-up MOS
Legend
PUCR: Port pull-up control register
PDR: Port data register
PCR: Port control register
Figure B.3 Port 1 Block Diagram (P16, P15, P12, P10)
Rev. 2.0, 03/02, page 269 of 298