Datasheet

CHAPTER 4 PORT FUNCTIONS
User’s Manual U18698EJ1V0UD
82
Figure 4-4. Block Diagram of P20 to P25
P20/SEG21/ANI0 to
P25/SEG16/ANI5
RD
WR
PORT
WR PM
Output latch
(P20 to P25)
PM20 to PM25
PM2
WR PF
PF2
LCD controller/driver
WR PU
PU20 to PU25
P-ch
PU2
Selector
Selector
Internal bus
P2
V DD
A/D converter
PF20 to PF25
Note
Note
Note
Note
μ PD78F041x only.
P2: Port register 2
PU2: Pull-up resistor option register 2
PM2: Port mode register 2
PF2: Port function register 2
RD: Read signal
WR××: Write signal