HD6433044 Datasheet, PDF (831/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

Appendix C I/O Port Block Diagrams
C.1 Port 1 Block Diagram
Software
standby Mode 7
Hardware standby
External bus
released
Mode 7
P1 _n
Mode
1 to 6
Mode 1 to 4
Reset
R
Q
D
P1 _n DDR
C
WP1D
Reset
R
Q
D
P1 _nDR
C
WP1
RP1
WP1D: Write to P1DDR
WP1: Write to port 1
RP1: Read port 1
n = 0 to 7
Figure C-1 Port 1 Block Diagram
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