Table of Contents
CHAPTER 13 8/10-bit A/D converter
13.3
Configuration of 8-/10-bit A/D Converter
This section explains the pins, registers, and interrupt factors of the A/D converter.
I Pins of 8-/10-bit A/D Converter
The pins of the 8-/10-bit A/D converter serve as general-purpose I/O ports.Listed below are the pin
functions and the settings required for use of the 8-/10-bit A/D converter.
Table 13.3-1 Pins of 8-/10-bit A/D Converter
Function Used
Trigger input
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Reference:
For the block diagram of the pins, see CHAPTER 4 I/O PORT.
354
Pin Name
Pin Function
ADTG
General-purpose I/O
port,
external trigger input
AN0
AN1
AN2
AN3
General-purpose I/O
ports, analog inputs
AN4
AN5
AN6
AN7
Setting Required for Use of 8-/10-bit
A/D Converter
Set as input port in port direction
register (DDR).
Set as input port in port direction
register (DDR).
Input of analog signal enabled (ADER:
ADE7 to ADE0 = 11111111 B)
ADER: ADE7 to ADE0="11111111
")
B
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