TMS320C6678: TMS320C6678: CIC mapping - system versus host interrupts

Daniel Costin

Part Number: TMS320C6678

Hi,

Using the C6678 SoC, can be mapped many system events (CIC inputs) to the same host event (CIC outputs)?

Example:

CIC0: can be mapped <EDMA3CC0 TC_ERRINT0> and <EDMA3CC0 TC_ERRINT1> to the same <CIC0_OUT(32+0+11*n) Or CIC1_OUT(32+0+11*(n-4))> ?

Thank you.

over 5 years ago

0 Yordan Kovachev over 5 years ago

TI__Guru**** 161600 points

Hi,

Yes, this is correct. See 1.3.3 Channel Mapping from Chip Interrupt Controller:
"The next stage of the CIC is to map the system interrupts that have been enabled to internal channels. Channels are used to group the system interrupts into a smaller number of interrupt inputs that can be given to a host interface. When multiple system interrupts are mapped to the same channel their interrupts are OR'd together so that when either is active the output is active."

Best Regards,
Yordan

0 Daniel Costin over 5 years ago in reply to Yordan Kovachev

Intellectual 610 points

Ok. Thank you.

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TMS320C6678: TMS320C6678: CIC mapping - system versus host interrupts