Changes between Version 6 and Version 7 of Component/Vci Xicu


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Timestamp:
Oct 30, 2010, 10:23:50 PM (15 years ago)
Author:
alain
Comment:

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  • Component/Vci Xicu

    v6 v7  
    66
    77This VCI target is a memory mapped peripheral implementing
    8 a vectorized interrupt controller, a timer controller, and an Inter-processor interrupt controller.
    9 
    10 This controller is an interrupt hub, concentrating 3 types of interrupts:
     8a vectorized interrupt controller, a timer controller, and an Inter-processor interrupt controller: It is an interrupt hub, concentrating 3 types of interrupts:
    119 * up to 32 internal programmable timer interrupts (PTI),
    1210 * up to 32 external hardware interrupt lines (HWI),
    … …  
    1513mask individual interrupt sources.
    1614Priority between interrupt source types is left to the handling operating system. Priority
    17 of interrupts inside an interrupt source type is from the lowestIdx(highest priority) to
    18 the highestIdx(lower priority).
     15of interrupts inside an interrupt source type is from the lowest index(highest priority) to
     16the highest index (lower priority).
    1917
    2018=== 1.1) Constructor Parameters ===
    … …  
    2422The following parameters allow the system designer to get just the needed hardware.
    2523
    26  * pti count (in range0..32): number of programmable timers
    27  * hwi count (in range0..32): number of external hardware interrupt lines
    28  * wti count (in range0..32): number of write-triggered interrupt sources
    29  * irqcount (in range1..32): number of output interrupt lines
     24 * pti count (in range 0..32): number of programmable timers
     25 * hwi count (in range 0..32): number of external hardware interrupt lines
     26 * wti count (in range 0..32): number of write-triggered interrupt sources
     27 * irqcount  (in range 1..32): number of output interrupt lines
    3028
    3129=== 1.2) Programmers's View ===
    … …  
    6058||R   || WTI_ACTIVE       || 01110 || OUT_INDEX ||
    6159||R   || PRIO             || 01111 || OUT_INDEX ||
    62 ||    || Reserved         || 1**** ||          ||
     60||    || Reserved         || 1---- ||          ||
    6361
    6462Complete specification is in [attachment:xicu-1.0.pdf].