FB Top Register Map
866
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
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