Port 2 - NEC 78K0 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: Read signal
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CHAPTER 4 PORT FUNCTIONS
Figure 4-11. Block Diagram of P20 to P27
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User's Manual U15947EJ2V0UD
P20/ANI0 to P27/ANI7