P22 And P27 Block Diagram - NEC PD78052 User Manual

WR
PUO
RD
WR
PORT
Output Latch
(P22 and P27)
WR
PM
PM22, PM27
Alternate Function
PUO : Pull-up resistor option register
PM : Port mode register
RD : Port 2 read signal
WR : Port 2 write signal
140
CHAPTER 6 PORT FUNCTIONS
Figure 6-8. P22 and P27 Block Diagram
PUO2
Selector
V
DD
P-ch
P22/SCK1,
P27/SCK0/SCL