Port 2 - NEC 78K0/KD1 Series User Manual

4.2.3 Port 2

Port 2 is an 8-bit input-only port.
This port can also be used for A/D converter analog input.
Figure 4-11 shows a block diagram of port 2.
RD
A/D converter
RD: Port 2 read signal
90
CHAPTER 4 PORT FUNCTIONS
Figure 4-11. Block Diagram of P20 to P27
+
–
V
REF
Preliminary User's Manual U16315EJ1V0UD
P20/ANI0 to P27/ANI7