NEC uPD78P078 User Manual
Page 96
96
CHAPTER 4 PIN FUNCTION (
µ
PD78078Y SUBSERIES)
4.3 Input/output Circuits and Recommended Connection of Unused Pins
Table 4-1 shows the input/output circuit types of pins and the recommended conditions for unused pins.
Refer to Figure 4-1 for the configuration of the input/output circuit of each type.
Table 4-1. Pin Input/Output Circuit Types (1/2)
Pin Name
Input/Output
Input/Output
Recommended Connection of Unused Pins
Circuit Type
P00/INTP0/TI00
2
Input
Connect to V
SS
.
P01/INTP1/TI01
8-A
Input/Output
Connect independently via a resistor
P02/INTP2
to V
SS.
P03/INTP3
P04/INTP4
P05/INTP5
P06/INTP6
P07/XT1
16
Input
Connect to V
DD
.
P10/ANI0 to P17/ANI7
11
Input/Output
Connect independently via a
P20/SI1
8-A
resistor to V
DD
or V
SS
.
P21/SO1
5-A
P22/SCK1
8-A
P23/STB
5-A
P24/BUSY
8-A
P25/SI0/SB0/SDA0
10-A
P26/SO0/SB1/SDA1
P27/SCK0/SCL
P30/TO0
5-A
P31/TO1
P32/TO2
P33/TI1
8-A
P34/TI2
P35/PCL
5-A
P36/BUZ
P37
P40/AD0 to P47/AD7
5-E
Input/Output
Connect independently via a resistor
to V
DD
.