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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Omair Mohammed Abdullah <omair.m.abdullah@linux.intel.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: Question: PCM short and long sync formats
Date: Mon, 26 Mar 2012 11:26:50 +0100	[thread overview]
Message-ID: <20120326102650.GC3098@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <4F7031AD.3090202@linux.intel.com>


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On Mon, Mar 26, 2012 at 02:36:53PM +0530, Omair Mohammed Abdullah wrote:
> On Wednesday 21 March 2012 05:21 PM, Mark Brown wrote:

> >What do you mean when you say "PCM short frame sync" and "PCM long
> >frame sync"?

> Sorry for the late reply, I was away.

> What I mean by short/long frame sync is: the frame sync lasts for 1
> bit/1 word wide.

> Eg.: For short frame sync, we get a frame sync signal for 1 clock
> before the first bit on the RX/TX.

> It is different from I2S mode where the frame sync is inverted and
> the transition starts 1 clock before the bits and lasts till bit 1.

I'm sorry but I still have no idea what you're talking about.  You've
described PCM mode but not explained what "short frame sync" and "long
frame sync" mode are.  

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  reply	other threads:[~2012-03-26 10:25 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-21 10:21 Question: PCM short and long sync formats Omair Mohammed Abdullah
2012-03-21 11:51 ` Mark Brown
2012-03-26  9:06   ` Omair Mohammed Abdullah
2012-03-26 10:26     ` Mark Brown [this message]
2012-03-26 12:07       ` Omair Mohammed Abdullah
2012-03-26 12:08         ` Mark Brown
2012-03-26 13:29           ` Omair Mohammed Abdullah
2012-03-26 13:33             ` Mark Brown
2012-03-27  3:32               ` [PATCH] ASoC: Added PCM short and long frame " Omair Mohammed Abdullah
2012-03-27  3:34                 ` Omair Mohammed Abdullah
2012-03-27  7:33                   ` Lars-Peter Clausen

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