
CHAPTER 4 PORT FUNCTIONS
User’s Manual U17854EJ9V0UD
125
Figure 4-27. Block Diagram of P140 and P141
P140/PCLBUZ0/INTP6,
P141/PCLBUZ1/INTP7
WRPU
RD
WRPORT
WRPM
PU140, PU141
PM140, PM141
EVDD
P-ch
PU14
PM14
P14
Alternate
function
Output latch
(P140, P141)
Selector
Internal
bus
Alternate
function
P14:
Port register 14
PU14:
Pull-up resistor option register 14
PM14:
Port mode register 14
RD:
Read signal
WR
××: Write signal