Features Supported

Eight external pins (4 data input and 4 clock input pins) per SDFM module
Different configurable modulator clock modes supported
Four independent, configurable secondary filter (comparator) units per module
- Four different filter type selection (Sinc1/Sinc2/SincFast/Sinc3) options available
- Detection of over-value condition, under-value condition, and Threshold-crossing conditions
- OSR value for comparator filter unit (COSR) programmable from 1 to 32
Four independent configurable primary filter (data filter) units per module
- Four different filter type selection (Sinc1/Sinc2/SincFast/Sinc3) options available
- OSR value for data filter unit (DOSR) programmable from 1 to 32
- Ability to enable or disable (or both) individual filter module
- Ability to synchronize all four independent filters by using the Main Filter Enable (MFE) bit or by using PWM signals
Data filter output can be represented in either 16 bits or 32 bits.
Programmable mode FIFO for data filter to reduce interrupt overhead
PWMs can be used to generate a modulator clock for SDFM
Configurable Input Qualification available for both SD-Cx and SD-Dx
Ability to use one filter channel clock (SD-C1) to provide clock to other filter clock channels
Configurable digital filter available on comparator filter events to blankout comparator events caused by spurious noise

SysConfig Features

Note: It is strongly recommend to use SysConfig where it is available instead of using direct SW API calls. This will help simplify the SW application and also catch common mistakes early in the development cycle.

Comparator configurations for Filter type, OSR and detection of over-value/under-value/Threshold-crossing conditions
Data filter configurations for Filter type, OSR, PWM configuration for SDSYNC and FIFO settings
Frequency and full scale range settings
Integrated support for interrupt

NA

Include the below file to access the APIs #include <sdfm.h>