Texas Instruments AFE79 Series - 2.14.50 Register 144 h (offset = 144 h) [reset = 0 h]; 2.14.51 Register 145 h (offset = 145 h) [reset = 0 h]; 2.14.52 Register 146 h (offset = 146 h) [reset = 0 h]

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Serial Interface Register Maps
2.14.50 Register 144h (offset = 144h) [reset = 0h]
Figure 2-1933. Register 144h
7 6 5 4 3 2 1 0
FB_DDC_NCO1_FRAC_FCW_NUM[7:0]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1947. Register 144 Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO1_F
RAC_FCW_NUM[7
:0]
R/W 0h
Numerator of the fractional fequency control word for nco1.
Signed number.
System Configuration macros compute and configure this
automatically and hence are strongly recommended.
2.14.51 Register 145h (offset = 145h) [reset = 0h]
Figure 2-1934. Register 145h
7 6 5 4 3 2 1 0
FB_DDC_NCO1_FRAC_FCW_NUM[15:8]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1948. Register 145 Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO1_F
RAC_FCW_NUM[1
5:8]
R/W 0h
Numerator of the fractional fequency control word for nco1.
Signed number.
System Configuration macros compute and configure this
automatically and hence are strongly recommended.
2.14.52 Register 146h (offset = 146h) [reset = 0h]
Figure 2-1935. Register 146h
7 6 5 4 3 2 1 0
FB_DDC_NCO1_FRAC_FCW_DEN[7:0]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-1949. Register 146 Field Descriptions
Bit Field Type Reset Description
7-0
FB_DDC_NCO1_F
RAC_FCW_DEN[7:
0]
R/W 0h
Denominator of the fractional fequency control word for nco1.
Unsigned number.
System Configuration macros compute and configure this
automatically and hence are strongly recommended.