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WR
PU
PU4
PU42
Alternate
function
RD
WR
PORT
P4
Output latch
(P42)
WR
PM
PM4
PM42
Alternate
function
P4:
Port register 4
PU4:
Pull-up resistor option register 4
PM4:
Port mode register 4
RD:
Read signal
WR××: Write signal
CHAPTER 4 PORT FUNCTIONS
Figure 4-16. Block Diagram of P42
User's Manual U17854EJ9V0UD
EV
DD
P-ch
P42/TI04/TO04
113
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