IBM uPD78082 User Manual
Page 45
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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 V
SS
via a resistor.
P02/INTP2
P03/INTP3
P10/ANI0-P17/ANI7
11
Input/Output
Independently connect to V
DD
or V
SS
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 V
SS
.
AV
DD
Connect to V
DD
.
AV
SS
Connect to V
SS
.
V
PP
(
µ
PD78P083)
Connect directly to V
SS
.
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