HD64F3644PV Datasheet, PDF (515/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix C I/O Port Block Diagrams
Appendix C I/O Port Block Diagrams
C.1 Block Diagrams of Port 1
V_CC
V_CC
P1_n
V_SS
SBY
RES
(low level
during reset
and in standby
mode)
PUCR1_n
PMR1_n
PDR1_n
PCR1_n
Internal
data bus
Legend:
PDR1: Port data register 1
PCR1: Port control register 1
PMR1: Port mode register 1
PUCR1: Port pull-up control register 1
Note: n = 7 or 6
Figure C.1 (a) Port 1 Block Diagram (Pins P1₇ and P1₆)
IRQ_n–4
Rev. 6.00 Sep 12, 2006 page 493 of 526
REJ09B0326-0600