Renesas RX100 Series User Manual page 866

RX13T Group
Operation example 2: Priority group trigger input during low-priority group rescan, with rescan setting
Figure 26.22 shows an example when a group A trigger is input during rescan operation on group B.
If a trigger for the priority groups (groups A and B for group C and group A for group B) is input, scan for the priority
group starts even while rescan operation on the low-priority group is in progress. After scan for the priority group is
completed, scan for the low-priority group is restarted after having been discontinued.
Operations of the ADCSR.ADST bit, storing to the A/D conversion result in the A/D data register (ADDRy), and
interrupt requests are the same as example 1.
Trigger for group A
Trigger for group B
Trigger for group C
Scan Started
(1)
ADST bit
Group A
Channel 0 (AN000)
Group B
Channel 1 (AN001)
Waiting for conversion
Channel 2 (AN002)
Group C
Waiting for
Channel 3 (AN003)
A/D conversion C1
conversion
Channel 4 (AN004)
Waiting for conversion
ADDR0
ADDR1
ADDR2
ADDR3
ADDR4
Scan end interrupt
Group B scan end
interrupt
Group C scan end
interrupt
Figure 26.22 Example 2 of Group Priority Operation: Priority Group Trigger Input during Low-Priority Group
Rescan, With Rescan Setting
(ADGSPCR.GBRSCN = 1, ADGSPCR.GBRP = 0, ADGSPCR.LGRRS = 1)
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
Group B scanned
Group C scanned
(Group priority operation)
Waiting for conversion
A/D conversion B1
Waiting for conversion
A/D conversion
C2
Result of A/D conversion B1
Stored
Group A scanned Group A scanned
(Group priority Group B (Group priority
operation) operation)
rescanned
Waiting for
A/D conversion A1 A/D conversion A2
conversion
B2 Waiting for conversion B3 Waiting for conversion
Waiting for conversion
Waiting for conversion
Stored
Result of A/D conversion A1
Stored
Result of A/D conversion C1
26. 12-Bit A/D Converter (S12ADF)
Group B rescanned Group C rescanned
Waiting for conversion
Waiting for conversion
A/D conversion B4 Waiting for conversion
(11)
A/D conversion C3
Stored
Result of A/D conversion A2
Stored
Result of A/D conversion B4
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Waiting for
conversion
Stored
Result of A/D
conversion C3