WR
PU
PU16, PU17
RD
WR
PORT
Output latch
(P16, P17)
WR
PM
PM16, PM17
P1:
Port register 1
PU1:
Pull-up resistor option register 1
PM1:
Port mode register 1
RD:
Read signal
WR××: Write signal
112
CHAPTER 5 PORT FUNCTIONS
Figure 5-12. Block Diagram of P16 and P17
PU1
Alternate
function
P1
PM1
Alternate
function
Preliminary User's Manual U17260EJ3V1UD
EV
DD
P-ch
P16/TOH1/INTP5,
P17/TI50/TO50