10.3.4.20 ATPL360_REG_THRESHOLDS_TABLE_HI (0x400C)

Table of thresholds to automatically update Tx mode (see ATPL360_REG_CFG_IMPEDANCE (0x4005)) from HIGH mode. These parameters are only used if ATMC is enabled (see ATPL360_REG_CFG_AUTODETECT_IMPEDANCE (0x4004)).

Corrected RMS_CALC (see ATPL360_REG_CORRECTED_RMS_CALC (0x4018)) is compared with these thresholds after every transmission to select Tx mode for the next transmission. The decision is taken following the steps shown below:

If corrected RMS_CALC is below TH_HI_VLO_x, Tx mode will be updated to VERY_LOW mode
Else if corrected RMS_CALC is below TH_HI_LO_x, Tx mode will be updated to LOW mode
Else Tx mode will remain in HIGH mode

where:

TH_HI_VLO_x: Threshold to change from HIGH to VERY_LOW mode for Tx attenuation level x (1 dB steps)
TH_HI_LO_x: Threshold to change from HIGH to LOW mode for Tx attenuation level x (1 dB steps)

Access: Read-write.

Value Range: 64 bytes (see Table 10-22).

Default Value: See Table 10-23 or Table 10-24, depending on the PL360 PRIME binary used (see ATPL360_REG_VERSION_NUM (0x4003)).

Table 10-22. Structure of ATPL360_REG_THRESHOLDS_TABLE_HI
Byte 0-3	Byte 4-7	Byte 8-11	Byte 12-15	Byte 16-19	Byte 20-24	Byte 25-27	Byte 28-31
TH_HI_LO_0	TH_HI_LO_1	TH_HI_LO_2	TH_HI_LO_3	TH_HI_LO_4	TH_HI_LO_5	TH_HI_LO_6	TH_HI_LO_7
Byte 32-35	Byte 36-39	Byte 40-43	Byte 44-47	Byte 48-51	Byte 52-55	Byte 56-59	Byte 60-63
TH_HI_VLO_0	TH_HI_VLO_1	TH_HI_VLO_2	TH_HI_VLO_3	TH_HI_VLO_4	TH_HI_VLO_5	TH_HI_VLO_6	TH_HI_VLO_7

Table 10-23. Default Values of ATPL360_REG_THRESHOLDS_TABLE_HI (Single Channel Only)
TH_HI_LO_0	TH_HI_LO_1	TH_HI_LO_2	TH_HI_LO_3	TH_HI_LO_4	TH_HI_LO_5	TH_HI_LO_6	TH_HI_LO_7
0	0	0	0	0	0	0	0
TH_HI_VLO_0	TH_HI_VLO_1	TH_HI_VLO_2	TH_HI_VLO_3	TH_HI_VLO_4	TH_HI_VLO_5	TH_HI_VLO_6	TH_HI_VLO_7
1467	1292	1145	1019	910	811	725	648

Table 10-24. Default Values of ATPL360_REG_THRESHOLDS_TABLE_HI (Single/Double Channel)
TH_HI_LO_0	TH_HI_LO_1	TH_HI_LO_2	TH_HI_LO_3	TH_HI_LO_4	TH_HI_LO_5	TH_HI_LO_6	TH_HI_LO_7
0	0	0	0	0	0	0	0
TH_HI_VLO_0	TH_HI_VLO_1	TH_HI_VLO_2	TH_HI_VLO_3	TH_HI_VLO_4	TH_HI_VLO_5	TH_HI_VLO_6	TH_HI_VLO_7
1038	924	822	731	652	582	518	462