NEC uPD78056Y User Manual
Page 87
87
CHAPTER 4 PIN FUNCTION (
µ
PD78054Y Subseries)
Input/Output
Circuit Type
P00/INTP0/TI00
2
Input
Connect to V
SS
.
P01/INTP1/TI01
8-A
P02/INTP2
P03/INTP3
Individually connect to V
SS
via a resistor.
P04/INTP4
P05/INTP5
P06/INTP6
P07/XT1
16
Input
Connect to V
DD
.
P10/ANI0 to P17/ANI7
11
P20/SI1
8-A
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
Individually connect to V
DD
or V
SS
via a
P27/SCK0/SCL
resistor.
P30/TO0
5-A
P31/TO1
P32/TO2
P33/TI1
P34/TI2
P35/PCL
5-A
P36/BUZ
P37
P50/A8 to P57/A15
5-A
Input/output
Individually connect to V
DD
or V
SS
via a
resistor.
P40/AD0 to P47/AD7
5-E
Input/Output
Individually connect to V
DD
via a resistor.
Input/Output
Input/Output
Pin Name
Input/Output
Recommended Connection of Unused Pins
8-A
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)