CHAPTER 2 PIN FUNCTIONS
62
User’s Manual U14359EJ4V0UM
2.4 Pin I/O Circuits and Recommended Connection of Unused Pins
It is recommended that 1 to 10 k
Ω
resistors be used when connecting to V
DD
or V
SS
via resistors.
(1/2)
Pin Name
I/O Circuit Type
Recommended Connection
P00/PWM0
5
P01/INTP000/TI000
P02/INTP001
5-AC
P03/TO00
5
P04/DMARQ0/INTP100 to P07/DMARQ3/INTP103
5-AC
P10/PWM1
5
P11/INTP010/TI010, P12/INTP011
5-AC
P13/TO01
5
Input:
Independently connect to V
DD
or V
SS
via a resistor
Output: Leave open
P20/NMI
2
Connect to V
SS
directly.
P21/INTP020/TI020, P22/INTP021
5-AC
P23/TO02
5
P24/TC0/INTP110 to P27/TC3/INTP113
P30/SO2/INTP130
P31/SI2/INTP131
P32/SCK2/INTP132
P33/TXD2/INTP133
P34/RXD2/INTP120
P35/INTP121
P36/INTP122
P37/ADTRG/INTP123
5-AC
P40/TXD0/SO0
5
P41/RXD0/SI0
P42/SCK0
5-AC
P43/TXD1/SO1
5
P44/RXD1/SI1
P45/SCK1
P50/INTP030/TI030, P51/INTP031
5-AC
P52/TO03
5
Input:
Independently connect to V
DD
or V
SS
via a resistor
Output: Leave open
P70/ANI0 to P77/ANI7
9
Connect to V
SS
directly.
PBD0/DMAAK0 to PBD3/DMAAK3
5
Input:
Independently connect to V
DD
or V
SS
via a resistor
Output: Leave open
PCM0/WAIT
5
Input:
Independently connect to V
DD
via a
resistor
PCM1/CLKOUT/BUSCLK
5
Input:
Independently connect to V
DD
or V
SS
via a resistor
Output: Leave open