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Appendix C I/O Port Block Diagrams
C.2
Port 2 Block Diagram
Hardware standby
P2
n
WP2P:
Write to P2PCR
RP2P:
Read P2PCR
WP2D:
Write to P2DDR
WP2:
Write to port 2
RP2:
Read port 2
SSOE:
Software standby output port enable
n = 0 to 7
Rev. 4.00 Jan 26, 2006 page 880 of 938
REJ09B0276-0400
Software
standby
SSOE
Mode 6/7
External bus
released
Mode 6/7
Mode
1 to 5
Figure C.2 Port 2 Block Diagram
Reset
Q
P2 PCR
n
C
RP2P
WP2P
Reset
Mode 1 to 4
Q
P2 DDR
n
C
WP2D
Reset
Q
P2 DR
n
C
WP2
RP2
R
D
R
D
R
D
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