What is Message-signaled interrupts (MSI)?

A scheme in which a device signals an interrupt by writing to a designated address. It needs no dedicated interrupt wire and lets one device have many interrupts.

Field: I/O Interfaces & Buses

Message-signaled interrupts (MSI) in the explanations

Questions that mention Message-signaled interrupts (MSI) (1)

  1. What is a characteristic of MSI (message-signaled interrupts) used in PCI Express?

Related terms

PCI Express Interrupt 128b/130b encoding 8b/10b encoding AXI Bit error rate (BER) Characteristic impedance Clock and data recovery (CDR) Compute Express Link (CXL) Credit-based flow control

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