10.3.4.22 ATPL360_REG_THRESHOLDS_TABLE_VLO (0x400E)

Table of thresholds to automatically update Tx mode (see ATPL360_REG_CFG_IMPEDANCE (0x4005)) from VERY_LOW 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_VLO_VLO_x, Tx mode will remain in VERY_LOW mode
Else if corrected RMS_CALC is above TH_VLO_HI_x, Tx mode will be updated to HIGH mode
Else Tx mode will be updated to LOW mode

where:

TH_VLO_VLO_x: Threshold to remain Tx mode in VERY_LOW mode for Tx attenuation level x (1 dB steps)
TH_VLO_HI_x: Threshold to change from VERY_LOW to HIGH mode for Tx attenuation level x (1 dB steps)

Access: Read-write.

Value Range: 64 bytes (see Table 10-27).

Default Value: See Table 10-28 or Table 10-29, depending on the PL360 PRIME binary used (see ATPL360_REG_VERSION_NUM (0x4003)).

Table 10-27. Structure of ATPL360_REG_THRESHOLDS_TABLE_VLO
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_VLO_HI_0	TH_VLO_HI_1	TH_VLO_HI_2	TH_VLO_HI_3	TH_VLO_HI_4	TH_VLO_HI_5	TH_VLO_HI_6	TH_VLO_HI_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_VLO_VLO_0	TH_VLO_VLO_1	TH_VLO_VLO_2	TH_VLO_VLO_3	TH_VLO_VLO_4	TH_VLO_VLO_5	TH_VLO_VLO_6	TH_VLO_VLO_7

Table 10-28. Default Values of ATPL360_REG_THRESHOLDS_TABLE_VLO (Single Channel Only)
TH_VLO_HI_0	TH_VLO_HI_1	TH_VLO_HI_2	TH_VLO_HI_3	TH_VLO_HI_4	TH_VLO_HI_5	TH_VLO_HI_6	TH_VLO_HI_7
0	0	0	0	0	0	0	0
TH_VLO_VLO_0	TH_VLO_VLO_1	TH_VLO_VLO_2	TH_VLO_VLO_3	TH_VLO_VLO_4	TH_VLO_VLO_5	TH_VLO_VLO_6	TH_VLO_VLO_7
8479	7515	6665	5874	5192	4576	4030	3557

Table 10-29. Default Values of ATPL360_REG_THRESHOLDS_TABLE_VLO (Single/Double Channel)
TH_VLO_HI_0	TH_VLO_HI_1	TH_VLO_HI_2	TH_VLO_HI_3	TH_VLO_HI_4	TH_VLO_HI_5	TH_VLO_HI_6	TH_VLO_HI_7
0	0	0	0	0	0	0	0
TH_VLO_VLO_0	TH_VLO_VLO_1	TH_VLO_VLO_2	TH_VLO_VLO_3	TH_VLO_VLO_4	TH_VLO_VLO_5	TH_VLO_VLO_6	TH_VLO_VLO_7
100000	100000	100000	100000	100000	100000	100000	100000