HD6473887 Datasheet, PDF (490/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

Appendix C I/O Port Block Diagrams
C.1 Block Diagrams of Port 1
V_CC
V_CC
P1_n
V_SS
SBY
(low level
during reset
and in standby
mode)
PUCR1_n
PMR1_n
PDR1_n
PCR1_n
PDR1: Port data register 1
PCR1: Port control register 1
PMR1: Port mode register 1
PUCR1: Port pull-up control register 1
n = 7 to 4
Figure C-1 (a) Port 1 Block Diagram (Pins P1₇ to P1₄)
IRQ_n–4
473