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TPS23861 interrupt in semi automatic mode (Problems)

ardoster
Intellectual 855 points

Hi


I'm having problems with the INT line and the Semi Automatic mode. In my code, I'm able to detect the INT interrupt in automatic mode. But when in Semi Automatic mode  this interrupt is not triggered: The INT line remains in high level and is not set anymore asserted to low level.

I've read all registers before and after setting the Semi Automatic mode and I haven't seen differences to explain this behaviour.

To set the Semi Automatic mode, I write 0xAA in the Operating Register (0x12) in order to set the Automatic Mode for all ports. In a second test, I've tried to set the semi automatic mode only for one port, remaining all the others in automatic mode. In that case, the interrupt is triggered for all ports, except for the semi automatic port.

As conclusion: The interrupt is not triggered when in semi-automatic mode. Is this correct? Could anyone confirm this point?


Thanks in advance

Regards,

Eduardo