A/D Group C Trigger Select Register (Adgctrgr) - Renesas RX100 Series User Manual

RX13T Group
26.2.12

A/D Group C Trigger Select Register (ADGCTRGR)

Address(es): S12AD.ADGCTRGR 0008 90D9h
b7 b6
GRCE GCADI
E
Value after reset: 0 0
Bit Symbol
b5 to b0 TRSC[5:0]
b6 GCADIE
b7 GRCE
ADGCTRGR enables operation for group C and selects the A/D conversion start trigger. For details on group priority
operation, see Table 26.11 and Table 26.12 .
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 ). If the issuance period is less than tSCAN, A/D conversion by a trigger may have no effect.
SCAN
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
Conversion Time for details.
Table 26.8 lists the selection of A/D conversion start sources selected by the TRSA[5:0] bits for group C.
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
b5 b4 b3 b2
TRSC[5:0]
0 0 0 0
Bit Name
Group C A/D Conversion
Start Trigger Select
Group C Scan End Interrupt
Enable
Group C A/D Conversion
Operation Enable
b1 b0
0 0
Description
Select the A/D conversion start trigger for group C in group scan
mode.
0: Disables interrupt generation after completion of group C scan
1: Enables interrupt generation after completion of group C scan
Enables A/D conversion operation for group C.
0: Group C is not used
1: Group C is used
26. 12-Bit A/D Converter (S12ADF)
Page 829 of 1041
R/W
R/W
R/W
R/W