CHAPTER 2 PIN FUNCTIONS
Preliminary User’s Manual U16846EJ1V0UD
32
2.3 Pin I/O Circuits and Recommended Connection of Unused Pins
Table 2-2 shows the types of pin I/O circuit and the recommended connections of unused pins.
Refer to Figure 2-1 for the configuration of the I/O circuits of each type.
Table 2-2. Pin I/O Circuit Types
Pin Name
I/O Circuit Type
I/O
Recommended Connection of Unused Pins
P00/TI000
P01/TI010/TO00
P02
P03
P10/SCK10/TxD0
Note
P11/SI10/RxD0
Note
8-A
P12/SO10
P13/TxD6
5-A
P14/RxD6 8-A
P15/TOH0 5-A
P16/TOH1/INTP5
P17/TI50/TO50/FLMD1
8-A
I/O
Input:
Independently connect to V
DD
or V
SS
via a resistor.
Output: Leave open.
P20/ANI0 to P23/ANI3
9-C
Input
Connect to V
DD
or V
SS
.
P30/INTP1 to P33/INTP4
Input:
Independently connect to V
SS
via a resistor.
Output: Leave open.
P120/INTP0
8-A I/O
Input:
Independently connect to V
DD
or V
SS
via a resistor.
Output: Leave open.
P130 3-C
Output
Leave
open.
RESET 2
Input
−
AV
REF
Input
Connect directly to V
DD
.
AV
SS
Connect directly to V
SS
.
FLMD0
−
−
Connect to V
SS
.
Note TxD0 and RxD0 are available only in the
µ
PD78F0102H and 78F0103H.