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TMS320F280049: Reset source to clear RAM.

Luke Chen
Expert 5090 points
Part Number: TMS320F280049

Hi all,

I check the F2837xD TRM and it says, after a POR, XRS, CPU1.WDRS, CPU1.NMIWDRS or HIBRESET, the boot ROMs will clear all of the system and message RAMs on both CPUs.

According to F280049 TRM, after a POR, the boot ROMs will clear the M0/M1, LSx, GSx, and message RAMs. Does it mean POR is the only reset source to clear all RAM memory of F280049 and the external reset(XRS) won't do this?

I am wondering the reason designing different reset mechanisms between F2837xS/D, F28004x and F2838xS/D, please advise your comments if any, thanks for help.

Regards,

Luke