589
16.1.3
Pin Configuration
Table 16-1 summarizes the input pins used by the A/D converter.
The AV
CC
and AV
SS
pins are the power supply pins for the analog block in the A/D converter. The
V
ref
pin is the A/D conversion reference voltage pin.
The 12 analog input pins are divided into two channel sets and two groups, with analog input pins
0 to 7 (AN0 to AN7) comprising channel set 0, analog input pins 8 to 11 (AN8 to AN11)
comprising channel set 1, analog input pins 0 to 3 and 8 to 11 (AN0 to AN3, AN8 to AN11)
comprising group 0, and analog input pins 4 to 7 (AN4 to AN7) comprising group 1.
Table 16-1 A/D Converter Pins
Pin Name
Symbol
I/O
Function
Analog power supply pin
AV
CC
Input
Analog block power supply
Analog ground pin
AV
SS
Input
Analog block ground and reference voltage
Reference voltage pin
V
ref
Input
A/D conversion reference voltage
Analog input pin 0
AN0
Input
Channel set 0 (CH3 = 0) group 0 analog inputs
Analog input pin 1
AN1
Input
Analog input pin 2
AN2
Input
Analog input pin 3
AN3
Input
Analog input pin 4
AN4
Input
Channel set 0 (CH3 = 0) group 1 analog inputs
Analog input pin 5
AN5
Input
Analog input pin 6
AN6
Input
Analog input pin 7
AN7
Input
Analog input pin 8
AN8
Input
Channel set 1 (CH3 = 1) group 0 analog inputs
Analog input pin 9
AN9
Input
Analog input pin 10
AN10
Input
Analog input pin 11
AN11
Input
A/D external trigger input
pin
ADTRG
Input
External trigger input for starting A/D
conversion
Содержание H8S/2645
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