• State Accepted Answer
  • Locked Locked
  • Replies 3 replies
  • Subscribers 91 subscribers
  • Views 2654 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

AHB fixed length burst termination in the middle of the burst

alinx

Hello, 

I'm trying to understand the behavior of AHB subordinate if a fixed length AHB burst terminates in the middle of the burst. By terminate, I mean that the AHB manager just starts to send IDLE instead of the next SEQ transfer without receiving an error response from the AHB subordinate. 

For example:

An INCR4 burst sends the first and second beats of the transfer:

Burst: INCR4

NONSEQ, SEQ. IDLE IDLE

Instead of all four beats of the transfer:

NONSEQ, SEQ. SEQ, SEQ 

 

Are AHB slaves designed to handle the above termination of the burst in the middle of a fixed length transfer? 

Parents
  • 0 Arm Employee Badge in reply to Colin Campbell

    So yes, if your subordinate sees an HTRANS sequence of NONSEQ-SEQ-IDLE for an INCR4 burst, this would tell the subordinate that the burst has been early terminated, and it should perform whatever request it next receives and forget about the previous early terminated burst length "suggestion". 

Reply
  • 0 Arm Employee Badge in reply to Colin Campbell

    So yes, if your subordinate sees an HTRANS sequence of NONSEQ-SEQ-IDLE for an INCR4 burst, this would tell the subordinate that the burst has been early terminated, and it should perform whatever request it next receives and forget about the previous early terminated burst length "suggestion". 

Children
No data