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AHB split retry response

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Note: This was originally posted on 9th December 2008 at http://forums.arm.com

IN AMBA AHB , there are split and retry response. These are 2 cycle responses.
whole SPLIT sequence is given in the spec. but my doubt is in which scenario slave
has to to issue SPLIT and RETRY response?

Waiting for the reply. Thanks in advance.
Parents
  • 0
    Note: This was originally posted on 10th December 2008 at http://forums.arm.com

    Hi vlsiuser...

    Actually when to generate split and retry is highly dependent on the system architecture...
    and also the designer...

    When slave cannot respond to the master in predefined wait states..
    Split or retry is given for better bus usage.. so other master can access the bus...



    Hi,

    Yes you are right. It depends on system architecture. but what my doubt is, in which situation
    slave will not respond to master. and for how many cycles master will wait ?

    and is it like SPLIT and RETRY response are possible in case of multiple master and multiple
    slaves?

    Thanks,
    vlsiuser.
Reply
  • 0
    Note: This was originally posted on 10th December 2008 at http://forums.arm.com

    Hi vlsiuser...

    Actually when to generate split and retry is highly dependent on the system architecture...
    and also the designer...

    When slave cannot respond to the master in predefined wait states..
    Split or retry is given for better bus usage.. so other master can access the bus...



    Hi,

    Yes you are right. It depends on system architecture. but what my doubt is, in which situation
    slave will not respond to master. and for how many cycles master will wait ?

    and is it like SPLIT and RETRY response are possible in case of multiple master and multiple
    slaves?

    Thanks,
    vlsiuser.
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