This register is used to control the digital filter x.
| DFLTEN | Digital Filter Enable Set and cleared by software. This bit is used to control the start of acquisition of the corresponding digital filter path. The behavior of this bit depends on ACQMOD and external events. or the acquisition starts when the proper trigger event occurs if ACQMOD = 01x . The serial or parallel interface delivering the samples shall be enabled as well. - 0: The acquisition is stopped immediately - 1: The acquisition is immediately started if ACQMOD = 00x or 1xx , |
| DMAEN | DMA Requests Enable Set and cleared by software. This bit is used to control the generation of DMA request in order to transfer the processed samples into the memory. - 0: The DMA interface for the corresponding digital filter is disabled - 1: The DMA interface for the corresponding digital filter is enabled This field can be write-protected, please refer to Section 1.4.15: Register protection for details. |
| FTH | RXFIFO Threshold selection Set and cleared by software. This bit is used to select the RXFIFO threshold. This bit is not significant for RXFIFOs working in interleaved transfer mode. Refer to Section 1.4.13.4: Using the interleaved transfer mode for details. - 0: RXFIFO threshold event generated when the RXFIFO is not empty - 1: RXFIFO threshold event generated when the RXFIFO is half-full This field can be write-protected, please refer to Section 1.4.15: Register protection for details. |
| ACQMOD | Digital filter Trigger mode Set and cleared by software. This field is used to select the filter trigger mode. - 000: Asynchronous, continuous acquisition mode - 001: Asynchronous, single-shot acquisition mode - 010: Synchronous, continuous acquisition mode - 011: Synchronous, single-shot acquisition mode - 100: Window, continuous acquisition mode - 101: Synchronous, snapshot mode others: same a 000 This field can be write-protected, please refer to Section 1.4.15: Register protection for details. |
| TRGSENS | Digital filter Trigger sensitivity selection Set and cleared by software. This field is used to select the trigger sensitivity of the external signals - 0: A rising edge event triggers the acquisition - 1: A falling edge even triggers the acquisition Note that when the trigger source is TRGO or OLDx event, TRGSENS value is not taken into account. When TRGO is selected, the sensitivity is forced to falling edge, when OLDx event is selected, the sensitivity is forced to rising edge. This field can be write-protected, please refer to Section 1.4.15: Register protection for details. |
| TRGSRC | Digital filter Trigger signal selection, Set and cleared by software. This field is used to select which external signals is used as trigger for the corresponding filter. - 0000: TRGO is selected - 0001: OLDx event is selected - 0010: mdf_trg[0] is selected … - 1111: mdf_trg[13] is selected This field can be write-protected, please refer to Section 1.4.15: Register protection for details. |
| SNPSFMT | Snapshot data format Set and cleared by software. This field is used to select the data format for the snapshot mode. - 0: The integrator counter (INT_CNT) is not inserted into the MDF_SNPSxDR register, leaving a data resolution of 23 bits. - 1: The integrator counter (INT_CNT) is inserted at position [15:9] of MDF_SNPSxDR register, leaving a data resolution of 16 bits. This field can be write-protected, please refer to Section 1.4.15: Register protection for details. |
| NBDIS | Number of samples to be discarded Set and cleared by software. This field is used to define the number of samples to be discarded every time the DFLTx is re-started. - 0: no sample discarded - 1: 1 sample discarded - 2: 2 samples discarded … - 255: 255 samples discarded This field can be write-protected, please refer to Section 1.4.15: Register protection for details. |
| DFLTRUN | Digital filter Run Status Flag Set and cleared by hardware. This bit indicates if the digital filter is running or not. - 0: The digital filter is not running, and ready to accept a new trigger event - 1: The digital filter is running |
| DFLTACTIVE | Digital filter Active Flag Set and cleared by hardware. This bit indicates if the digital filter is active: can be running or waiting for events. - 0: The digital filter is not active, and can be re-enabled again (via DFLTEN bit) if needed - 1: The digital filter is active |