Texas Instruments ADS42JB46 User Manual page 12

Software Operation
Section
JESD204B Controls
12
ADS42JB46, ADS42JB49, and ADS42JB69 Evaluation Module
Table 3. ADC Controls Window Descriptions (continued)
Control
Subclass
SysRef Delay
IDLE Sync Code
SYNC Request
TX Link Config Data
Release ILANE Seq
Pulse Detect Modes
Insert Lane Align
Testmode EN
Scramble
Insert Frame Align
LMFC Reset Masked
SERDES Test Pattern
Link Layer Test Mode
Link Layer RPAT
CTRL F
Octets per Frame
CTRL K
Frames per multiframe
Force LMFC Count
LMFC Count Initial Value
Copyright © 2012–2017, Texas Instruments Incorporated
Description
Sets JESD204B subclass
Set the delay of the SYSREF input with respect to the input
clock
Sets output pattern when SYNC~ is asserted
Generates synchronization request
Disables sending initial link alignment (ILA) sequence when
SYNC~ is de-asserted
Delays the generation of the lane alignment sequence by 0,
1, 2, or 3 multiframes after the code group synchronization
Selects different detection modes for SYSREF (subclass 1)
and SYNC (subclass 2)
Inserts a lane alignment character (K28.3) for the receiver to
align to the lane boundary per section 5.3.3.5 of the
JESD204B specification
Generates a long transport layer test pattern mode
according to the 5.1.63 clause of the JESD204B
specification
Scramble enable bit in the JESD204B interface
Inserts a frame alignment character (K28.7) for the receiver
to align to the frame boundary per section 5.3.3.4 of the
JESD204B specification
Mask LMFC reset coming to digital
Sets test patterns in the transport layer of the JESD204B
interface
Generates a pattern according to clause 5.3.3.8.2 of the
JESD204B document
Changes the running disparity in modified RPAT pattern test
mode
Enables bit for number of octets per frame
Sets number of octets per frame (F)
Enables bit for number of frames per multiframe
Sets number of frames per multiframe
Forces LMFC count, enables using a different starting value
for the LMFC counter
The initial value that the LMFC count resets to
SLAU467D – November 2012 – Revised February 2017
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