Serialized IRQ

Serialized IRQ/Data is a communication protocol composed of two lines, PCI-Clock and IRQSER, used to transmit interrupt status. An IRQSER cycle essentially consists of three parts: Start, IRQ/Data, and Stop Frame. The operating modes are Continuous mode and Quiet mode. In Continuous mode, the source of the Start Frame is not restricted; in Quiet mode, only the Host can generate the Start Frame signal.

For channel-prefix differences, see Settings.

Decode Settings

Serialized IRQ Decode Settings

• CLOCK: PCI Clock channel.
• IRQSER: IRQSER channel.
• Normal: Expand signals of the same frame on one line. Default is this mode selected.
  • Show repeat frame: Show repeated frames. Field enabled (Enable) when checked (Normal mode only). Default is unchecked (hide repeat frames).
• Advance: Spread all IRQ/Data in a frame across different lines.
• High Active: Adjust numeric judgment for High Active. Field enabled (Enable) when checked. Default is unchecked.

Normal: hide repeat frames (Default)

Normal: show repeat frames

Advance: IRQ/Data on separate lines

Result

Normal mode (hide repeat frames):

Normal mode (hide repeat frames)

Normal mode (show repeat frames):

Normal mode (show repeat frames)

Advance mode:

Advance mode