SPRUJB3 March 2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
DCC has provision to read the counts during operation. This is performed using , , and registers. Read from these registers in default mode allows reading the present value of count. This is useful when in single shot mode or mode where DCC stops upon error.
These registers can be used to read the FIFO through the [7-4] FIFO_READ configuration. Reads on the empty FIFO shall provide the contents of last pointed location. Application shall track the empty/full conditions of the FIFOs to track the count records consistently.
Regardless of FIFO_READ configuration, the FIFO internally keeps updating records based on configured triggers till full.