D12320VF25IV Datasheet, PDF (1273/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Modes 6 and 7
Appendix C I/O Port Block Diagrams
Reset
R
Q
D
PA4PCR
C
WPCRA
RPCRA
*1
PA₄
*2
Modes 4 and 5
Mode 7
Modes 4 to 6
Reset
R
Q
D
PA4DDR
C
WDDRA
Reset
R
Q
D
PA4DR
C
WDRA
Reset
R
Q
D
PA4ODR
C
WODRA
RODRA
A20E
RDRA
Legend:
WDDRA: Write to PADDR
WDRA: Write to PADR
WODRA: Write to PAODR
WPCRA: Write to PAPCR
RDRA: Read PADR
RPORA: Read port A
RODRA: Read PAODR
RPCRA: Read PAPCR
A20E: Address 20 enable
IRQPAS: IRQ port switching select
RPORA
IRQPAS
IRQ4 interrupt
input
Notes: 1. Output enable signal
2. Open drain control signal
Figure C.7 (b) Port A Block Diagram (Pin PA₄)
Rev.6.00 Sep. 27, 2007 Page 1241 of 1268
REJ09B0220-0600