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I/O Ports
15-19
15.5 Port 3
15.5.1 Block Diagram
Fig. 15-5-1 shows a block diagram for port 3.
Fig. 15-5-1 Port 3 Block Diagram (P30)
Internal data bus
M
P
X
P30
P3OUT
P3M
P3MD
P3DIR
P30D
P30O
P... Represents one bit of each register.
M
P
X
P30I
P3IN
BG