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Texas Instruments AFE79 Series User Manual

Texas Instruments AFE79 Series
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DAC JESD Register Map
273
SBAU337May 2020
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Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.4.24 Register 37h (offset = 37h) [reset = 0h]
Figure 2-253. Register 37h
7 6 5 4 3 2 1 0
JESD_CLK_TX2_DIV_N_M1
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-257. Register 37 Field Descriptions
Bit Field Type Reset Description
4-0
JESD_CLK_TX2_D
IV_N_M1
R/W 0h
For lanes[2:3]/[6:7], N_M1 value in Divide ratio of M/N for
generating the JESD_RX_CLK for DAC_JESD from
ROOT_CLK.
2.4.25 Register 38h (offset = 38h) [reset = 1Fh]
Figure 2-254. Register 38h
7 6 5 4 3 2 1 0
CLK_DIV_LFS
R_SEED_LOA
D
SPI_SYSREF_
OVERRIDE
SPI_SYSREF JESD_CLK_DI
V2_DIV_DITHE
R_EN
JESD_CLK_DI
V_DITHER_EN
DUC_CLK_DIV
_DITHER_EN
DUC_CLK_IO_
DIV_DITHER_
EN
TX_ROOT_CL
K_DIV_DITHE
R_EN
R/W-0h R/W-0h R/W-0h R/W-1h R/W-1h R/W-1h R/W-1h R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-258. Register 38 Field Descriptions
Bit Field Type Reset Description
7-7
CLK_DIV_LFSR_S
EED_LOAD
R/W 0h
LFSR load override to load lfsr_seed_val into the LFSR
module. To be used along with clk_div_lfsr_seed_val.
0 : load disable
1 : load enable
6-6
SPI_SYSREF_OV
ERRIDE
R/W 0h UNUSED
5-5 SPI_SYSREF R/W 0h UNUSED
4-4
JESD_CLK_DIV2_
DIV_DITHER_EN
R/W 1h
JESD_RD_DIV2_CLK dither-en
0 : Dither Disable
1 : Dither Enable
3-3
JESD_CLK_DIV_D
ITHER_EN
R/W 1h
JESD_RD_CLK dither-en
0 : Dither Disable
1 : Dither Enable
2-2
DUC_CLK_DIV_DI
THER_EN
R/W 1h
DUC_WR_CLK dither-en
0 : Dither Disable
1 : Dither Enable
1-1
DUC_CLK_IO_DIV
_DITHER_EN
R/W 1h UNUSED
0-0
TX_ROOT_CLK_DI
V_DITHER_EN
R/W 1h
ROOT_CLK dither-en
0 : Dither Disable
1 : Dither Enable

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Texas Instruments AFE79 Series Specifications

General IconGeneral
BrandTexas Instruments
ModelAFE79 Series
CategoryControl Unit
LanguageEnglish

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