305
Reset
WDDR3
Reset
WDR3
P34
RDR3
RODR3
RPOR3
Reset
WODR3
SCI module
*
1
*
2
Serial clock output enable
Serial clock output
Serial clock input enable
Serial clock input
WDDR3: Write to P3DDR
WDR3:
Write to P3DR
WODR3: Write to P3ODR
RPOR3: Read port 3
RDR3: Read
P3DR
RODR3: Read
P3ODR
Notes: 1. Output enable signal
2. Open drain control signal
Priority order: SCI
>
DR
R
P34DDR
C
Q
D
R
P34DR
C
Q
D
R
P34ODR
C
Q
D
Internal data bus
Figure 5.25 Port 3 Block Diagram (c) (Pin P34)
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