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CHAPTER 4 PORT FUNCTIONS
User’s Manual U15798EJ2V0UD
Figure 4-2. Block Diagram of P00 to P04
PU: Pull-up resistor option register
PM: Port mode register
RD: Port 0 read signal
WR: Port 0 write signal
Internal bus
V
DD0
P-ch
P00/INTP0,
P01/INTP1,
P02/INTP2,
P03/INTP3/ADTRG,
P04/INTP4
WR
PU
RD
WR
PORT
WR
PM
PU00 to PU04
Alternate
function
Output latch
(P00 to P04)
PM00 to PM04
Selector