Datasheet

78K0/Ix2 CHAPTER 4 PORT FUNCTIONS
R01UH0010EJ0500 Rev.5.00 111
Feb 28, 2012
Figure 4-4. Block Diagram of P20
(1) 78K0/IY2
P20/AN
I0
RD
WR
PORT
WR PM
PM20
PM2
P2
Internal bus
Output latch
(P20)
Selector
A/D converter
(2) 78K0/IA2, 78K0/IB2
P20/ANI0/AMP-
Note
RD
WR
PORT
WRPM
PM20
PM2
P2
Internal bus
Output latch
(P20)
Selector
A/D converter
Operational amplifier (-) input
Note
Note Products with operational amplifier only
P2: Port register 2
PM2: Port mode register 2
RD: Read signal
WR: Write signal