Texas Instruments AFE79 Series - 2.14.21 Register ABh (offset = ABh) [reset = 0 h]; 2.14.22 Register ACh (offset = ACh) [reset = 0 h]; 2.14.23 Register ADh (offset = ADh) [reset = 0 h]; 2.14.24 Register AEh (offset = AEh) [reset = 0 h]

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Serial Interface Register Maps
2.14.21 Register ABh (offset = ABh) [reset = 0h]
Figure 2-1904. Register ABh
7 6 5 4 3 2 1 0
FB_DDC_NCO2_FCW[31:24]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1918. Register AB Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO2_F
CW[31:24]
R/W 0h
Frequency control word (FCW) for nco2.
The System Configuration Macros automatically configure this.
2.14.22 Register ACh (offset = ACh) [reset = 0h]
Figure 2-1905. Register ACh
7 6 5 4 3 2 1 0
FB_DDC_NCO3_FCW[7:0]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1919. Register AC Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO3_F
CW[7:0]
R/W 0h
Frequency control word (FCW) for nco3.
The System Configuration Macros automatically configure this.
2.14.23 Register ADh (offset = ADh) [reset = 0h]
Figure 2-1906. Register ADh
7 6 5 4 3 2 1 0
FB_DDC_NCO3_FCW[15:8]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1920. Register AD Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO3_F
CW[15:8]
R/W 0h
Frequency control word (FCW) for nco3.
The System Configuration Macros automatically configure this.
2.14.24 Register AEh (offset = AEh) [reset = 0h]
Figure 2-1907. Register AEh
7 6 5 4 3 2 1 0
FB_DDC_NCO3_FCW[23:16]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset