35
SLOS757G – DECEMBER 2011 – REVISED MARCH 2020
Product Folder Links:
Detailed Description
Copyright © 2011–2020, Texas Instruments Incorporated
In the continuation of the example (see
), the IRQ Status register is read using method
previously recommended, followed by a single read of the FIFO Status register, which indicates that there
are at least 9 bytes to be read out.
Figure 6-22. IRQ Status Register Read Followed by FIFO Status Register Read
This is followed by a continuous read of the FIFO (see
). The first byte is 0x00 for no error.
The next byte is the DSFID (usually shipped by manufacturer as 0x00), then the UID, shown here up to
the next most significant byte (MSByte), the MFG code (0x07 to indicate TI silicon).
Figure 6-23. Continuous Read of FIFO