CHAPTER 4 PORT FUNCTIONS
Preliminary User’s Manual U16846EJ1V0UD
67
Figure 4-3. Block Diagram of P01
P01/TI010/TO00
WR
PU
RD
WR
PORT
WR
PM
PU01
Alternate
function
Output latch
(P01)
PM01
PU0
PM0
Alternate
function
V
DD
P-ch
Selector
Internal bus
PU0:
Pull-up resistor option register 0
PM0:
Port mode register 0
RD: Read
signal
WR
××
: Write
signal