DAC JESD Register Map
262
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
Table 2-235. Register 21 Field Descriptions
Bit
Field
Type
Reset
Description
2-0
SYSREF_MODE
R/W
1h
Determines how sysref is used in the JESD synchronizing
block.
0 : Dont use sysref pulses
1 : Use all sysref pulses
2 : Dont use sysref pulses
3 : Skip one sysref pulse then use only the next one
4 : Skip one sysref pulse then use all pulses
5 : skip two sysrefs and then use one
6 : skip two sysrefs and then use all
2.4.3 Register 22h (offset = 22h) [reset = 45h]
Figure 2-232. Register 22h
7
6
5
4
3
2
1
0
LINK0_JESD_SAMPLE_MODE
LINK0_JESD_MODE
R/W-1h
R/W-5h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-236. Register 22 Field Descriptions
Bit
Field
Type
Reset
Description
7-6
LINK0_JESD_SAM
PLE_MODE
R/W
1h
Defines the number of parallel samples to be given out in
duc_clk to tx_top from lanes[0:1]/[4:5]
0 : DB,S=1
1 : SB,S=1
2 : SB,S=2
3 : SB,S=4