Texas Instruments AFE79 Series - 2.14.53 Register 147 h (offset = 147 h) [reset = 2 Dh]; 2.14.54 Register 148 h (offset = 148 h) [reset = 0 h]; 2.14.55 Register 149 h (offset = 149 h) [reset = 0 h]

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Serial Interface Register Maps
2.14.53 Register 147h (offset = 147h) [reset = 2Dh]
Figure 2-1936. Register 147h
7 6 5 4 3 2 1 0
FB_DDC_NCO1_FRAC_FCW_DEN[15:8]
R/W-2Dh
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1950. Register 147 Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO1_F
RAC_FCW_DEN[1
5:8]
R/W 2Dh
Denominator of the fractional fequency control word for nco1.
Unsigned number.
System Configuration macros compute and configure this
automatically and hence are strongly recommended.
2.14.54 Register 148h (offset = 148h) [reset = 0h]
Figure 2-1937. Register 148h
7 6 5 4 3 2 1 0
FB_DDC_NCO2_FRAC_FCW_NUM[7:0]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1951. Register 148 Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO2_F
RAC_FCW_NUM[7
:0]
R/W 0h
Numerator of the fractional fequency control word for nco2.
Signed number.
System Configuration macros compute and configure this
automatically and hence are strongly recommended.
2.14.55 Register 149h (offset = 149h) [reset = 0h]
Figure 2-1938. Register 149h
7 6 5 4 3 2 1 0
FB_DDC_NCO2_FRAC_FCW_NUM[15:8]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1952. Register 149 Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO2_F
RAC_FCW_NUM[1
5:8]
R/W 0h
Numerator of the fractional fequency control word for nco2.
Signed number.
System Configuration macros compute and configure this
automatically and hence are strongly recommended.