10.3.4.68 ATPL360_REG_SYNC_XCORR_THRESHOLD (0x403C)

Correlation thresholds for synchronization (preamble detection). The format of each threshold is uQ0.16. It represents percentage with respect to the maximum ideal value of correlation (computed internally in PL360).

Access: Read-write.

Value Range: 12 bytes (see Table 10-39).

Default value: See Table 10-40.

Table 10-39. Synchronization Thresholds Table
Byte 0-1Byte 2-3Byte 4-5Byte 6-7Byte 8-9Byte 10-11
SYNC_TH_ASYNC_TH_BSYNC_2_3_TH_ASYNC_2_3_TH_BSYNC_1_2_TH_ASYNC_1_2_TH_B
where:
  • SYNC_TH_A: Threshold for detection of complete TYPE_A preamble. Used for frame synchronization.
  • SYNC_TH_B: Threshold for detection of complete TYPE_B preamble. Used for frame synchronization.
  • SYNC_TH_2_3_A: Threshold for detection of 2/3 TYPE_A preamble. Used to lock AGC.
  • SYNC_TH_2_3_B: Threshold for detection of 2/3 TYPE_B preamble. Used to lock AGC.
  • SYNC_TH_1_2_A: Threshold for detection of 1/2 TYPE_A preamble. Used to activate carrier detect.
  • SYNC_TH_1_2_B: Threshold for detection of 1/2 TYPE_B preamble. Used to activate carrier detect.
Table 10-40. Synchronization Thresholds Table Default Values
SYNC_TH_ASYNC_TH_BSYNC_2_3_TH_ASYNC_2_3_TH_BSYNC_1_2_TH_ASYNC_1_2_TH_B
112721074812124115341690816122
CAUTION: It is recommended to keep the default value of this parameter in order to maintain expected reception performance.