R01UH0822EJ0100 Rev.1.00
Page 856 of 1041
Jul 31, 2019
RX13T Group
26. 12-Bit A/D Converter (S12ADF)
When using group priority operation mode, refer to the following tables to select the desirable operating mode and set the
registers.
x = Don’t care
Note 1. When self-diagnosis is used (ADCER.DIAGM = 1), A/D conversion of the discontinued channel is started after self-diagnosis.
Table 26.10
Control of Scanning Operations According to the Settings of the ADGSPCR.GBRSCN Bit
Scanning Operation
Trigger Input
ADGSPCR.GBRSCN = 0
ADGSPCR.GBRSCN = 1
When A/D conversion for
group A is in progress
Input of trigger for group A
Trigger input is ineffective.
Trigger input is ineffective.
Input of trigger for group B
Trigger input is ineffective.
A/D conversion is performed on group B
after A/D conversion on group A is
completed.
Input of trigger for group C
Trigger input is ineffective.
A/D conversion is performed on group C
after A/D conversion on group A is
completed.
When A/D conversion for
group B is in progress
Input of trigger for group A
A/D conversion in progress
for group B discontinued and
conversion for group A starts.
A/D conversion in progress for group
B is discontinued and conversion for
group A starts.
A/D conversion for group B starts after
conversion for group A is completed.
Input of trigger for group B
Trigger input is ineffective.
Trigger input is ineffective.
Input of trigger for group C
Trigger input is ineffective.
A/D conversion is performed on group C
after A/D conversion on group B is
completed.
When A/D conversion for
group C is in progress
Input of trigger for group A
A/D conversion in progress
for group C discontinued and
conversion for group A starts.
A/D conversion in progress for group
C is discontinued and conversion for
group A starts.
A/D conversion for group C starts after
conversion for group A is completed.
Input of trigger for group B
A/D conversion in progress
for group C is discontinued
and conversion for group B
starts.
A/D conversion in progress for group
C is discontinued and conversion for
group B starts.
A/D conversion for group C starts after
conversion for group B is completed.
Input of trigger for group C
Trigger input is ineffective.
Trigger input is ineffective.
Table 26.11
Group Priority Operation Setting and Operating Mode for Two Groups
(ADGSPCR.PGS = 1, ADGCTRGR.GRCE = 0)
ADGSPCR
Operation
GBRSCN
LGRRS
GBRP
0
x
0
Group priority operation for two groups (groups A and B)
When a group A trigger is input, group B scan is completed (not restarted)
1
0
0
Group priority operation for two groups (groups A and B)
After group B scan is discontinued, group B scan is restarted from the head of the channel
selected with the ADANSB0 register after group A scan is completed.
1
1
0
Group priority operation for two groups (groups A and B)
After group B scan is discontinued, group B scan is restarted from the channel on which scan
was discontinued*
, among the channels selected with the ADANSB0 register after group A
scan is completed.
x
0
1
Group priority operation for two groups (groups A and B)
Single scan for group B is started continuously without start trigger input. After group B scan is
discontinued, single scan is restarted from the head of the channel selected with the ADANSB0
register after scan for group A is completed.
1
1
1
Group priority operation for two groups (groups A and B)
Single scan for group B is started continuously without start trigger input. After group B scan
was discontinued, single scan is restarted from the channel on which scan was discontinued*
,
among the channels selected with the ADANSB0 register after group A scan is completed.