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CHAPTER 5 PORT FUNCTIONS
User’s Manual U12697EJ3V0UM
Figure 5-14. Block Diagram of P66
PUO: Pull-up resistor option register
PM: Port mode register
RD: Port 6 read signal
WR: Port 6 write signal
WR
PU0
RD
PU0
WR
PM6
WR
P6
RD
P6
RD
PM6
PUO6
V
DD
P66/WAIT
Internal bus
Pull-up resistor option register
Port 6 mode register
PM66
External wait mode
Output latch
(P66)
Wait input