What value does the MAX30101 FIFO_A_FULL register represent?

The value programmed into the FIFO_A_FULL represents the number of empty spaces left in the FIFO when the A_FULL interrupt will be triggered.  See the table below for clarification.

Bits 3:0: FIFO Almost Full Value (FIFO_A_FULL)

This register sets the trigger for the FIFO_A_FULL interrupt.  For example, if set to 0x0F, the interrupt triggers when there are 15 empty spaces left (17 data samples), and so on.
 
FIFO_A_FULL[3:0]NO. OF SAMPLES IN THE FIFO
0x00h32
0x01h31
0x02h30
0x03h29
....
0x0Fh17


Tags: 000099071 Optical AFEs MAX30101EFD+ Optical Sensing Technology max30101

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