3069RF-ZTAT Datasheet, PDF (943/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Appendix C I/O Port Block Diagrams
C.1 Port 1 Block Diagram
Software
standby
SSOE
Hardware standby
External bus
released
Mode 7
Modes 1 to 4
Reset
R
Q
D
P1 _n DDR
C
WP1D
Mode 7
P1n
Reset
R
Q
D
P1 _nDR
Modes
1 to 5
C
WP1
RP1
[Legend]
WP1D: Write to P1DDR
WP1: Write to port 1
RP1: Read port 1
SSOE: Software standby output port enable
n = 0 to 7
Figure C.1 Port 1 Block Diagram
Rev. 5.0, 09/04, page 921 of 978