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12.1.3
Pin Configuration
Table 12.1 shows the A/D converter pin configuration.
Table 12.1
Pin Configuration
Name
Abbrev.
I/O
Function
Analog power supply pin
AV
CC
Input
Power supply of analog part
Analog ground pin
AV
SS
Input
Ground and reference voltage of analog part
Analog input pin 4
AN
4
Input
Analog input channel 4
Analog input pin 5
AN
5
Input
Analog input channel 5
Analog input pin 6
AN
6
Input
Analog input channel 6
Analog input pin 7
AN
7
Input
Analog input channel 7
External trigger input pin
ADTRG
Input
External trigger input for starting A/D conversion
12.1.4
Register Configuration
Table 12.2 shows the A/D converter register configuration.
Table 12.2
Register Configuration
Name
Abbrev.
R/W
Initial Value
Address
A/D mode register
AMR
R/W
H'10
H'FFC4
A/D start register
ADSR
R/W
H'7F
H'FFC6
A/D result register
ADRR
R
Undefined
H'FFC5