Renesas RX100 Series User Manual page 835

RX13T Group
GBRSCN Bit (Low-Priority Group Restart Setting)
This bit controls the restarting of scan operation during group priority control.
If a scan operation on the low-priority group has been stopped by a priority group trigger input with the GBRSCN bit set
to 1, the scan operation is restarted after the scanning of the priority group is completed. Also, if a low-priority trigger is
input during scan for the priority group, the scan operation on the low-priority group is restarted after the scan for the
priority group is completed.
If the GBRSCN bit has been set to 0, triggers that are input during A/D conversion are ignored. Also, the ADCSR.ADST
bit must be 0 when the GBRSCN bit is to be set.
The setting of the GBRSCN bit is enabled when the PGS bit is set to 1.
LGRRS Bit (Restart Channel Select)
This bit sets the channel on which scan is restarted during group priority control. The setting of the LGRRS bit is enabled
when the PGS and GBRSCN bits are set to 1.
If a scan operation on the low-priority group has been stopped due to group priority operation with the LGRRS bit set to
0, the scan operation is restarted from the start channel after the scan for the priority group is completed.
If a scan operation on the low-priority group has been stopped due to group priority operation with the LGRRS bit set to
1, the scan operation is restarted *
group is completed.
The LGRRS bit should be set while the ADCSR.ADST bit is 0.
Note 1. If A/D conversion on the addition set channel is not completed for the set number of times when scanning is
stopped, A/D conversion on the channel is restarted for the set number of times when scanning is restarted.
GBRP Bit (Single Scan Continuous Start)
This bit is set when the lowest-priority group is continuously operated in single scan mode while group priority operation
is set. The lowest-priority group is group C when groups A, B, and C are used; group B when groups A and B are used.
Setting the GBRP bit to 1 starts a single scan on the lowest-priority group. On completion of the scan, another single scan
on the lowest-priority group is automatically started.
If scanning has been stopped due to group priority operation, single scan on the lowest-priority group is automatically
restarted on completion of the A/D conversion on the priority group.
Disable the trigger input for the lowest-priority group before setting the GBRP bit to 1. When the GBRP bit is set to 1,
only the lowest-priority group is scanned again even if the GBRSCN bit is 0.
The ADCSR.ADST bit must be 0 when the GBRP bit is to be set.
The setting of the GBRP bit is enabled when the PGS bit is 1.
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
1
on the channel on which A/D conversion is not competed after the scan for the priority
26. 12-Bit A/D Converter (S12ADF)
Page 835 of 1041