Visible to Intel only — GUID: iga1457468809913
Ixiasoft
Visible to Intel only — GUID: iga1457468809913
Ixiasoft
38.8.1.3. Selection Latency
Selection latency is the time required for the system to transfer control to the correct interrupt vector, depending on which interrupt is triggered. The selection latency with the VIC component depends on the number of interrupts that it services. The table below outlines selection latency on a single VIC as a function of the number of interrupts.
Total Number of Interrupts | Interrupt Request Clock Delay (clocks) | Priority Processing Clock Delay (clocks) | Vector Generation Clock Delay (clocks) | Total Interrupt Latency (clocks) |
---|---|---|---|---|
1 | 2 | 0 | 1 | 3 |
2—4 | 2 | 1 | 1 | 4 |
5—16 | 2 | 2 | 1 | 5 |
17—32 | 2 | 3 | 1 | 6 |