CHAPTER 4 PORT FUNCTIONS
Preliminary User’s Manual U16315EJ1V0UD
82
Figure 4-3. Block Diagram of P01
P01/TI010/TO00
WR
PU
RD
WR
PORT
WR
PM
PU01
Alternate
function
Output latch
(P01)
PM01
Alternate
function
EV
DD
P-ch
Selector
Internal bus
PU0:
Pull-up resistor option register 0
PM:
Port mode register
RD:
Port 0 read signal
WR:
Port 0 write signal