DSA Page 0 Register Map
589
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.9.3 Register 70h (offset = 70h) [reset = 0h]
Figure 2-1095. Register 70h
7
6
5
4
3
2
1
0
EXT_LNA_CON_EN_FB
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1104. Register 70 Field Descriptions
Bit
Field
Type
Reset
Description
1-0
EXT_LNA_CON_E
N_FB
R/W
0h
By default, No LNA is assumed to come on FB path hence
setting this to B"00". Or rather LNA is assumed to not to
change.
2.9.4 Register 78h (offset = 78h) [reset = 0h]
Figure 2-1096. Register 78h
7
6
5
4
3
2
1
0
SPI_AGC_DSA_FB_0
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1105. Register 78 Field Descriptions
Bit
Field
Type
Reset
Description
5-0
SPI_AGC_DSA_FB
_0
R/W
0h
In case FB muxsel is used for changing the dsa setting for FB.
These registers needs to be programmed. Value of dsa gain
when fbmuxel is '0', ie fb is connected to txa.
2.9.5 Register 79h (offset = 79h) [reset = 0h]
Figure 2-1097. Register 79h
7
6
5
4
3
2
1
0
ENABLE_FBM
UXSEL_FOR_F
BDSA
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1106. Register 79 Field Descriptions
Bit
Field
Type
Reset
Description
0-0
ENABLE_FBMUXS
EL_FOR_FBDSA
R/W
0h
If this register is set fbmuxsels value will determine the DSA
gain. When fbmuxsel value is 100, then the value stored in
spi_agc_dsa_fb takes effect.
2.9.6 Register 7Ch (offset = 7Ch) [reset = 0h]
Figure 2-1098. Register 7Ch
7
6
5
4
3
2
1
0
SPI_AGC_DSA_FB_1
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset