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CHAPTER 2 PIN FUNCTION
Pin Name Input/Output Input/Output Recommended Connection for Unused Pins
Circuit Type
P00 2 Input Connect to V
SS.
P01/INTP1 8-A Input/Output Independently connect to VSS via a resistor.
P02/INTP2
P03/INTP3
P10/ANI0-P17/ANI7 11 Input/Output Independently connect to V
DD or VSS via
P30-P32 5-A a resistor.
P33, P34 8-A
P35/PCL 5-A
P36/BUZ
P37
P50-P57 5-A
P70/SI2/RxD 8-A
P71/SO2/TxD 5-A
P72/SCK2/ASCK 8-A
P100/TI5/TO5 8-A
P101/TI6/TO6
RESET 2 Input –
AV
REF – – Connect to VSS.
AVDD Connect to VDD.
AV
SS Connect to VSS.
VPP (
µ
PD78P083) Connect directly to VSS.
NC (44-pin plastic QFP Connect to V
SS (can also leave open)
version)
IC (Mask ROM version) Connect directly to V
SS.
2.3 Pin Input/Output Circuits and Recommended Connection of Unused Pins
Types of input/output circuits of the pins and recommeded connection of unused pins are shown in Table 2-1.
For the configuration of each type of input/output circuit, see Figure 2-1.
Table 2-1. Type of Input/Output Circuit of Each Pin