Texas Instruments AFE79 Series - 2.12.128 Register 532 h (offset = 532 h) [reset = 0 h]; 2.12.129 Register 534 h (offset = 534 h) [reset = 80 h]; 2.12.130 Register 536 h (offset = 536 h) [reset = 1 h]

www.ti.com TX Top Register Map
673
SBAU337–May 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
Table 2-1342. Register 531 Field Descriptions
Bit Field Type Reset Description
6-0
TX_PAP_RAMP_A
MPLITUDE_UPDA
TE_CYCLES
R/W 0h
Number of FDAC/16 cycles between amplitude update during
PAP ramp down and ramp up multiplication with the Tx data.
2.12.128 Register 532h (offset = 532h) [reset = 0h]
Figure 2-1331. Register 532h
7 6 5 4 3 2 1 0
TX_PAP_ATTENUATION_START_COS
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1343. Register 532 Field Descriptions
Bit Field Type Reset Description
7-0
TX_PAP_ATTENU
ATION_START_C
OS
R/W 0h
Starting amplitude values for ramp down during PAP cosine
ramp down mode. Ranges of allowed values is 0 to 128. In
the cosine mode, value of 0 will get converted to amplitude of
127/128 in the ramp down and value of 128 will map to
amplitude of 0.
2.12.129 Register 534h (offset = 534h) [reset = 80h]
Figure 2-1332. Register 534h
7 6 5 4 3 2 1 0
TX_PAP_ATTENUATION_START_LIN
R/W-80h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1344. Register 534 Field Descriptions
Bit Field Type Reset Description
7-0
TX_PAP_ATTENU
ATION_START_LI
N
R/W 80h
Starting values for ramp down during PAP linear ramp down
mode. ranges of allowed values is 128 to 0. The conversion to
amplitude is programmed_value/128.
2.12.130 Register 536h (offset = 536h) [reset = 1h]
Figure 2-1333. Register 536h
7 6 5 4 3 2 1 0
TX_PAP_ATTENUATION_STEP_SIZE
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1345. Register 536 Field Descriptions
Bit Field Type Reset Description
6-0
TX_PAP_ATTENU
ATION_STEP_SIZ
E
R/W 1h
Ramp down step size ranges from 1 to 127 in both cosine and
linear mode.