A-D CONVERTER
12.1 Overview
(4) Operation modes
The A-D converter is equipped with the following 4 modes. The A-D conversion and comparison (in
other words, the comparator function) are performed in the same operation modes.
The operation mode depends on the analog input pin.
❈ One-shot mode
This mode is used to perform the operation once for a voltage input from one selected analog input
pin. This mode can be used with analog input pin AN (i = 0 to 11).
i
❈ Repeat mode
This mode is used to perform the operation repeatedly for a voltage input from one selected analog
input pin. This mode can be used with analog input pin AN (i = 0 to 11).
i
❈ Single sweep mode
This mode is used to perform the operation for voltages input from multiple pins selected from analog
input pins AN
to 7).
j
(j = 0 to 7), one at a time. This mode can be used with analog input pins AN (j = 0
j
❈ Repeat sweep mode 0
This mode is used to perform the operation repeatedly for voltages input from multiple pins selected
from analog input pins AN (j = 0 to 7) .
j
❈ Repeat sweep mode 1
This mode is used to perform the operation repeatedly for voltages input from analog input pins AN
j
(j = 0 to 7). In this mode, analog input pins are divided into two groups: frequently-used pins and non-
frequently-used pins.
This mode can be used with analog input pins AN (j = 0 to 7).
j
7905 Group User’s Manual Rev.1.0
12-3
RENESAS [ RENESAS TECHNOLOGY CORP ]
