Texas Instruments AFE79 Series User Manual

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SBAU337–May 2020
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Serial Interface Register Maps
2.7.3 Register 10Eh (offset = 10Eh) [reset = 0h]
Figure 2-924. Register 10Eh
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 CTL_FBDIV_DI
VBY2
R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-931. Register 10E Field Descriptions
Bit Field Type Reset Description
7-1 0 R/W 0h Must read or write 0
0-0
CTL_FBDIV_DIVB
Y2
R/W 0h extra by2 in feedback divider in the pll
2.7.4 Register 10Fh (offset = 10Fh) [reset = 12h]
Figure 2-925. Register 10Fh
7 6 5 4 3 2 1 0
0 CTL_FBDIV_DIV
R/W-0h R/W-12h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-932. Register 10F Field Descriptions
Bit Field Type Reset Description
7-7 0 R/W 0h Must read or write 0
6-0 CTL_FBDIV_DIV R/W 12h Feedback divider. 18 is default assuming 9Ghz dac.
2.7.5 Register 110h (offset = 110h) [reset = 0h]
Figure 2-926. Register 110h
7 6 5 4 3 2 1 0
0 0 0 0 0 0 CTL_OUTDIV_MUX_TX
R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-933. Register 110 Field Descriptions
Bit Field Type Reset Description
7-2 0 R/W 0h Must read or write 0
1-0
CTL_OUTDIV_MU
X_TX
R/W 0h
Mux choosing between ext ref-clk and pll_clk for dac. That is
MSB bit. LSB bit choses between by1 and byn.
2.7.6 Register 111h (offset = 111h) [reset = 0h]
Figure 2-927. Register 111h
7 6 5 4 3 2 1 0
0 0 0 0 0 CTL_OUTDIV_DIV_TX
R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset

Texas Instruments AFE79 Series Specifications

General

Brand	Texas Instruments
Model	AFE79 Series
Category	Control Unit
Language	English