NEC PD78053 User Manual
135
CHAPTER 6 PORT FUNCTIONS
P-ch
WR
PM
WR
PORT
RD
WR
PUO
V
DD
P01/INTP1/TI01.
P02/INTP2
P02/INTP2
P06/INTP6
Selector
PUO0
Output Latch
(P01 to P06)
(P01 to P06)
PM01-PM06
Internal bus
P00/INTP0/TI00,
P07/XT1
P07/XT1
RD
Internal bus
Figure 6-2. P00 and P07 Block Diagram
Figure 6-3. P01 to P06 Block Diagram
PUO : Pull-up resistor option register
PM
: Port mode register
RD
: Port 0 read signal
WR : Port 0 write signal