NEC PD78078 用户手册

CHAPTER 4 PIN FUNCTION (

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

Recommended Connection of Unused Pins

Circuit Type

P00/INTP0/TI00

Input

Connect to V

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

Input

Connect to V

P10/ANI0 to P17/ANI7

Input/Output

Connect independently via a

P20/SI1

8-A

resistor to V

or V

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