
CHAPTER 4 PORT FUNCTIONS
User’s Manual U17854EJ9V0UD
116
Figure 4-19. Block Diagram of P52 to P55
P52 to P55
WRPU
RD
WRPORT
WRPM
PU52 to PU55
PM52 to PM55
EVDD
P-ch
PM5
PU5
P5
Output latch
(P52 to P55)
Selector
Internal
bus
P5:
Port register 5
PU5:
Pull-up resistor option register 5
PM5:
Port mode register 5
RD:
Read signal
WR
××: Write signal