Hi,
I have a question about AM335x EDMA.
In TRM(spruh73p) page.1678 Table 11-60 "Q0E0 Register Field Descriptions",
there are description of bit[7:6] ETYPE and written as follow:
***************************
0h = Event triggered via ER
1h = Auto-triggerd via QER
***************************
EDMA have 4 type of trigger events but there are only two of it.
Where are manually-trigger and chained trigger?
And it seem the value is uncorrect for Auto-trigger.
In the same page "11.4.1.35 Q0E0 Register", there following sentence:
*********************************************************************
For example, if the value in Q1E4 is read as 000 004Fh, this means the 4th entry in
queue 1 is a manually-triggered event on DMA channel 15.
*********************************************************************
In this example ETYPE value is 1h and it said it is manually-triggered.
What is the correct value for all type of event?
In other device's EDMA3, for example C6455, ETYPE value is as follow:
**********************************
0h = Event triggered via ER
1h = Manual triggered via ESR
2h = Chained triggered via CER
3h = Auto-triggered via QER
**********************************
Is this value same against AM335x EDMA3?
best regards,
g.f.
