R01UH0822EJ0100 Rev.1.00
Page 829 of 1041
Jul 31, 2019
RX13T Group
26. 12-Bit A/D Converter (S12ADF)
26.2.12
A/D Group C Trigger Select Register (ADGCTRGR)
ADGCTRGR enables operation for group C and selects the A/D conversion start trigger. For details on group priority
operation, see
TRSC[5:0] Bits (Group C A/D Conversion Start Trigger Select)
These bits select the trigger to start scanning of the analog input selected in group C. These bits are used for group scan
mode only; not used for any other modes. Software trigger or asynchronous trigger cannot be set as the scan conversion
trigger for group C. When using group C in group scan mode, set the TRSC[5:0] bits to a value other than 000000b, set
the ADCSR.TRGE bit to 1, and set the GRCE bit to 1.
When group C is used during group priority control in group scan mode and the ADGSPCR.GBRP bit is set to 1, group
C can be continuously operated in single scan mode. When continuously operating group C in single scan mode, set the
TRSC[5:0] bits to 3Fh and disable trigger selection.
Note that the issuance period of trigger for A/D conversion must be more than or equal to the actual scan conversion time
(t
SCAN
). If the issuance period is less than tSCAN, A/D conversion by a trigger may have no effect.
When the trigger from the module (MTU) operated in PCLKB is selected as an A/D conversion start trigger, a delay of
the period for synchronization processing occurs. See
section 26.3.5, Analog Input Sampling Time and Scan
lists the selection of A/D conversion start sources selected by the TRSA[5:0] bits for group C.
Address(es): S12AD.ADGCTRGR 0008 90D9h
b7
b6
b5
b4
b3
b2
b1
b0
GRCE GCADI
E
TRSC[5:0]
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b5 to b0
Group C A/D Conversion
Start Trigger Select
Select the A/D conversion start trigger for group C in group scan
mode.
R/W
b6
Group C Scan End Interrupt
Enable
0: Disables interrupt generation after completion of group C scan
1: Enables interrupt generation after completion of group C scan
R/W
b7
Group C A/D Conversion
Operation Enable
Enables A/D conversion operation for group C.
0: Group C is not used
1: Group C is used
R/W