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 AVCC
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Power supply and reference voltage of analog part
Ground and reference voltage of analog part
Analog input channel 0
Analog ground
Analog input 0
Analog input 1
Analog input 2
Analog input 3
Analog input 4
Analog input 5
Analog input 6
Analog input 7
Analog input 8
Analog input 9
Analog input 10
Analog input 11
AVSS
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
AN10
AN11
Analog input channel 1
Analog input channel 2
Analog input channel 3
Analog input channel 4
Analog input channel 5
Analog input channel 6
Analog input channel 7
Analog input channel 8
Analog input channel 9
Analog input channel 10
Analog input channel 11
External trigger input ADTRG
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.
AMR
R/W
R/W
R/W
R
Initial Value
H'30
Address
H'FFC6
H'FFC7
H'FFC4
H'FFC5
H'FFFA
A/D mode register
A/D start register
A/D result register H
A/D result register L
Clock stop register 1
ADSR
H'7F
ADRRH
ADRRL
CKSTPRT1
Not fixed
Not fixed
H'FF
R
R/W
333
ETC [ ETC ]
