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LP8501 INT

Other Parts Discussed in Thread: LP8501


About the interrupt of the LP8501

When BIT is set, it is output from the INT terminal.
Which of the following conditions (1) and (2) is correct?

(1) When ENG1, ENG2 and ENG3 are all set, the INT terminal is output.

(2) If any one of ENG 1, ENG 2, and ENG 3 is set, the INT terminal is output.

Best Regards,

  • Hi,

    The STATUS/INTERRUPT register does not generate the interrupt signal on INT pin. This is only a status register. When you get an interrupt from INT pin, you can read this register to figure out which engine causes the interrupt.

    For the engine to generate an interrupt, you can use the INT instruction. You also have a choice to end the LED engine with an interrupt if you use the END instruction with that option. Any of the LED engine use the INT instruction or END instruction with int option will set the corresponding bit (for that engine) in STATUS/INTERRUPT register, and also assert INT pin.


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