AMBA-AXI and ACE协议详解(三)
文章目录
- Chapter A5 Multiple Transactions(多个事务)
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- A5.1 AXI transaction identifiers(AXI事务标识符)
- A5.2 Transaction ID(事务ID)
- A5.3 Transaction ordering(事务排序)
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- A5.3.1 Read ordering(读排序)
- A5.3.2 Normal write ordering(正常写排序)
- A5.3.3 AXI3 write data interleaving(AXI3写数据交织)
- A5.3.4 Read and write interaction(读写交互)
- A5.3.5 Interconnect use of transaction identifiers(互连对事务标识符的使用)
- A5.3.6 Width of transaction ID fields(Transaction ID字段的宽度)
- A5.4 Removal of write interleaving support(取消写交织支持)
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- A5.4.1 Removal of WID(WID的取消)
- A5.4.2 Legacy considerations(遗留问题考量)
- Chapter A6 AXI4 Ordering Model(AXI4排序模型)
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- A6.1 Definition of the ordering model(排序模型的定义)
- A6.2 Master ordering(主设备排序)
- A6.3 Interconnect ordering(互连排序)
- A6.4 Slave ordering(从设备排序)
- A6.5 Response before final destination(到达最终目的地前的响应)
- Chapter A7 Atomic Accesses(原子访问)
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- A7.1 Single-copy atomicity size(单拷贝原子性大小)
- A7.2 Exclusive accesses(独占访问)
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- A7.2.1 Exclusive access process(独占访问流程)
- A7.2.2 Exclusive access from the perspective of the master(从主设备角度看独占访问)
- A7.2.3 Exclusive access from the perspective of the slave(从从设备角度看独占访问)
- A7.2.4 Exclusive access restrictions(独占访问限制)
- A7.2.5 Slaves that do not support exclusive access(不支持独占访问的从设备)
- A7.3 Locked accesses(Locked访问)
- A7.4 Atomic access signaling(原子访问信令)
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- A7.4.1 Legacy considerations(遗留问题考量)
Chapter A5 Multiple Transactions(多个事务)
本章介绍实现无序事务完成和发出多个未完成地址的机制。它包含以下部分:
- AXI transaction identifiers on page A5-76
- Transaction ID on page A5-77
- Transaction ordering on page A5-78
- Removal of write interleaving support on page A5-81.
A5.1 AXI transaction identifiers(AXI事务标识符)
AXI协议包含AXI ID事务标识符。主设备可使用这些标识符来识别必须按顺序返回的不同事务。
具有给定AXI ID值的所有事务必须保持有序,但对不同ID值的事务的排序没有限制。这意味着单个物