Datasheet

CHAPTER 4 PORT FUNCTIONS
User’s Manual U18698EJ1V0UD
90
Figure 4-11. Block Diagram of P120
WRPU
RD
PU12
PM12
WR
PORT
WRPM
VDD
P-ch
P12
PU120
PM120
P120/INTP0/EXLV
I
Output latch
(P120)
Internal bus
Selector
Alternate
function
P12: Port register 12
PU12: Pull-up resistor option register 12
PM12: Port mode register 12
RD: Read signal
WR××: Write signal