Hi all,
I'm using clock synthesizer IC as the clocks for McASP of AM335x.
With functional limitation, I want to use the output of clock IC for all audio clocks, such as ahclk, aclk and fs.
The IC can generate clocks only 1:1 duty. So the duty of all clocks are 1:1.
In Technical Reference Manual of AM335x (spruh73m.pdf), the width of FS duration is described as one slot or one bit.
But I think it is the specification of generator, when FS is outputted from AM335x.
Considering the McASP logic when FS is received, only rising edge should be considered as frame start,
no need to care falling edge of FS.
So, I want to clear the specification of FS duration when external clock is used.
Is one slot or one bit duration is the specification of FS even for external clock, or valid for 1:1 duty ?
As actual behavior, AM3358 on BBB works with 1:1 FS with 8 channels TDM.
Regards,
TOMINAGA Satoshi
