Preliminary User’s Manual U19014EJ1V0UD
60
CHAPTER 4 PORT FUNCTIONS
4.1 Port Functions
There are two types of pin I/O buffer power supplies: EV
DD
and V
DD
. The relationship between these power
supplies and the pins is shown below.
Table 4-1. Pin I/O Buffer Power Supplies
Power Supply
Corresponding Pins
EV
DD
Port pins other than P121 and P122
V
DD
•
P121 and P122
•
Non-port pins
The
µ
PD78F0730 is 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
.
Figure 4-1. Port Types
Port 0
P00
P01
Port 1
P10
P17
Port 3
P30
P33
Port 6
P60
P61
P120
Port 12
P122
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