# RCW changed when upgraded to latest

**URL:** <https://community.solid-run.com/t/rcw-changed-when-upgraded-to-latest/678>\
**Category:** NXP LX2160\
**Created:** [July 2, 2023, 3:50pm UTC](https://community.solid-run.com/t/rcw-changed-when-upgraded-to-latest/678 "2023-07-02T15:50:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![joema](https://avatars.discourse-cdn.com/v4/letter/j/a9adbd/32.png) [@joema](https://community.solid-run.com/u/joema)\
**Post date:** [July 2, 2023, 3:50pm UTC](https://community.solid-run.com/t/rcw-changed-when-upgraded-to-latest/678/1 "2023-07-02T15:50:26Z")

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We just moved from an older commit of the x2160a\_build git (one that is based on LSDK-20.12) to the latest commit of it (which is based on LSDK-21.08).

We noticed that the RCW has changed from:

Reset Configuration Word (RCW):  
00000000: 50838338 24500050 00000000 00000000  
00000010: 00000000 0e010000 00000000 00000000  
00000020: 12c001a0 00002580 00000000 08000086  
00000030: 09240000 00000001 00000000 00000000  
00000040: 00000000 00000000 00000000 00000000  
00000050: 00000000 00000000 00000000 00000000  
00000060: 00000000 00000000 00027000 00000000  
00000070: 084e0000 00150000

To:  
Reset Configuration Word (RCW):  
00000000: 50838338 24500050 00000000 00000000  
00000010: 00000000 0e010000 00000000 00000000  
00000020: 13c001a0 00002580 00000000 08000086  
00000030: 09240000 00000001 00000000 00000000  
00000040: 00000000 00000000 00000000 00000000  
00000050: 00000000 00000000 00000000 00000000  
00000060: 00000000 00000000 00027000 00000000  
00000070: 084e0000 00150000

So - word at offset 20 changed from 12c001a0 to 13c001a0

Not sure if this is on purpose? what are the consequences?

Thank you

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<div class="post-metadata">

**Author:** ![jnettlet](https://dub1.discourse-cdn.com/flex005/user_avatar/community.solid-run.com/jnettlet/32/62_2.png) [@jnettlet](https://community.solid-run.com/u/jnettlet)\
**Post date:** [July 3, 2023, 4:18am UTC](https://community.solid-run.com/t/rcw-changed-when-upgraded-to-latest/678/2 "2023-07-03T04:18:12Z")

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That area of the RCW is the PBI\_LENGTH. It is dynamic based on the PBI code.

 ![image](https://europe1.discourse-cdn.com/flex005/uploads/solid_run/original/1X/bf98830b65cea513bcfc035dd469b502ab7d07a5.png)

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<div class="post-metadata">

**Author:** ![joema](https://avatars.discourse-cdn.com/v4/letter/j/a9adbd/32.png) [@joema](https://community.solid-run.com/u/joema)\
**Post date:** [July 3, 2023, 6:33am UTC](https://community.solid-run.com/t/rcw-changed-when-upgraded-to-latest/678/3 "2023-07-03T06:33:52Z")

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Thank you@