HD64F2168 Datasheet, PDF (637/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

18.2 Input/Output Pins
Table 18.1 summarizes the pins used by the A/D converter. The 8 analog input pins are divided
into two groups consisting of four channels. Analog input pins 0 to 3 (AN0 to AN3) comprising
group 0 and analog input pins 4 to 7 (AN4 to AN7) comprising group1.
The AVCC and AVSS pins are the power supply pins for the analog block in the A/D converter.
Table 18.1 Pin Configuration
Pin Name
Symbol
Analog power supply AVCC
pin
Analog ground pin AVSS
Reference power
supply pin
AVref
Analog input pin 0 AN0
Analog input pin 1 AN1
Analog input pin 2 AN2
Analog input pin 3 AN3
Analog input pin 4 AN4
Analog input pin 5 AN5
Analog input pin 6 AN6
Analog input pin 7
A/D external trigger
input pin
AN7
ADTRG
I/O
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Function
Analog block power supply
Analog block ground and reference voltage
Reference voltage for A/D conversion
Group 0 analog input pins
Group 1 analog input pins
External trigger input pin for starting A/D
conversion
Rev. 3.00, 03/04, page 597 of 830