SN65DSI83: IRQ signal description

Sadashiva Kamath

Expert 1175 points

Part Number: SN65DSI83

Hi,

We're using SN65DSI83ZXHR in our design. I have couple of questions related to IRQ signal

IRQ output signal is push-pull or open-drain output? Do we need external pull-up resistor?
IRQ signal is active high output or active low output. Is logic 0 output means IRQ is asserted?

over 3 years ago

0 Alex A over 3 years ago

TI__Prodigy 560 points

Hello,

1. IRQ is push-pull output. You do not need an external pull-up.

2. IRQ is active high. It is driven high (logic level 1) when an error occurs, IRQ_EN (CSR 0xE0) is set, and the corresponding error enable(s) (CSR 0xE1 registers) are set. So logic level 1 output would mean IRQ is asserted and an error has occurred.

Regards,

Alex

0 Sadashiva Kamath over 3 years ago in reply to Alex A

Expert 1175 points

Thanks, This helps..!

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SN65DSI83: IRQ signal description