CSR1
RND: Received End Interrupt. Set to 1 during any Received Subframes and Received
TND: Transmit End Interrupt. Set to 1 during any Transmit Subframes and Transmit
CER: Checksum Error. Detected checksum error in the current received subframe.
FER: Frame Error. Failed to detect a valid preamble, or detected more than 2 UID
symbol mismatches out of 8, during the allotted receive frame period.
SUBF: Subframe Interrupt. Set to 1 during any Subframe hardware interrupts. Set to
zero at either Transmit End or Received End interrupts.
ADIR: Readback of the ANT_SW pin during the prior subframe.
RLK: Remote Locked. Same meaning as the RLOCK pin signal.
LK: LOCKED. Same meaning as the LOCK pin signal.