TMS320F28335: Trip Zone detection level

Mert Sahin

Part Number: TMS320F28335

Dear Sir/Madam,

Trip zone at 28335 is negative edge triggered. I wonder what is the logic level of triggering? Could some sudden glitches cause trip zone interrupt to occur? Thanks a lot.

Mert Sahin

over 3 years ago

0 Cody Watkins over 3 years ago

TI__Mastermind 41385 points

Mert,

any signal that crosses below VIL, as specified in the data sheet, could cause the trip-zone to be triggered. For the one-shot latching mechanism to latch the signal we require the signal remain active for 3 cycles.

Realistically extremely short pulses with be "gobbled" by the input buffer and not seen by the rest of the system, but this is not guaranteed.

Datasheet link:https://www.ti.com/lit/gpn/tms320f28335

Regards,
Cody

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TMS320F28335: Trip Zone detection level