Chapter 4 Port Functions; Port Functions - NEC 78K0 User Manual

4.1

Port Functions

There are two types of pin I/O buffer power supplies: AV
supplies and the pins is shown below.
78K0/KF1 products are provided with the ports shown in Figure 4-1, which enable variety of control operations.
The functions of each port are shown in Table 4-2.
In addition to the function as digital I/O ports, these ports have several alternate functions. For details of the
alternate functions, see CHAPTER 2 PIN FUNCTIONS.
Port 5
Port 6
Port 7
Port 12
Port 13
Port 14
96

CHAPTER 4 PORT FUNCTIONS

Table 4-1. Pin I/O Buffer Power Supplies
Power Supply
AV P20 to P27
REF
EV Port pins other than P20 to P27
DD
Figure 4-1. Port Types
P50
P57
P60
P67
P70
P77
P120
P130
P140
P145
User's Manual U15947EJ2V0UD
and EV . The relationship between these power
REF DD
Corresponding Pins
P00
*
P06
P10
P17
P20
P27
P30
P33
P40
P47
Port 0
Port 1
Port 2
Port 3
Port 4