Texas Instruments AFE79 Series - 2.14.134 Register 4 A9 h (offset = 4 A9 h) [reset = 58 h]; 2.14.135 Register 4 AAh (offset = 4 AAh) [reset = Ch]; 2.14.136 Register 4 ACh (offset = 4 ACh) [reset = 40 h]

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Serial Interface Register Maps
2.14.134 Register 4A9h (offset = 4A9h) [reset = 58h]
Figure 2-2017. Register 4A9h
7 6 5 4 3 2 1 0
FB_AGC_BLANK_TIME_FOR_EXT_COMP_CHANGE[15:8]
R/W-58h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2031. Register 4A9 Field Descriptions
Bit Field Type Reset Description
7-0
FB_AGC_BLANK_
TIME_FOR_EXT_
COMP_CHANGE[1
5:8]
R/W 58h
When Ext Component Gain Changes, this blanking time is
used for all the detectors
2.14.135 Register 4AAh (offset = 4AAh) [reset = Ch]
Figure 2-2018. Register 4AAh
7 6 5 4 3 2 1 0
FB_AGC_EXT_LNA_GAIN_MARGIN
R/W-Ch
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2032. Register 4AA Field Descriptions
Bit Field Type Reset Description
5-0
FB_AGC_EXT_LN
A_GAIN_MARGIN
R/W Ch
LNA gain margin to be used for reenabling the LNA. Provides
additional hysterisis on top of the attack and decay hysterisis.
Resolution in 0.5 dB
2.14.136 Register 4ACh (offset = 4ACh) [reset = 40h]
Figure 2-2019. Register 4ACh
7 6 5 4 3 2 1 0
FB_AGC_PIN_1_SELECT_BITS[7:0]
R/W-40h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2033. Register 4AC Field Descriptions
Bit Field Type Reset Description
7-0
FB_AGC_PIN_1_S
ELECT_BITS[7:0]
R/W 40h
Each bit corresponds to one particular detector which should
be used for peak detector 1
Bit 14 --> Dig OVR Bit 13 -> Reserved Bit 12 --> Reserved Bit
11 --> LNARF det Bit 10 --> Reserved Bit 9 --> Reserved Bit 8
--> reserved Bit 7 --> Dig bigstep attack Bit 6 --> Dig small
step attack Bit 5 --> Bigstep decay Bit 4 --> Small step decay
Bit 3 --> Dig pwr attack Bit 2 --> Dig pwr decay Bit 1 -->
Absolute reliability Bit 0 --> Relative reliability