See Definitions, Acronyms, and Abbreviations provides a list of acronyms, abbreviations, and specific definitions used in this document.
Definitions, Acronyms, and Abbreviations
| Item | Description |
|---|---|
| AXI | The generic term for all implemented AXI protocol interfaces. |
| master device or connected master | An IP core or device (or one of multiple interfaces on an IP core) that generates AXI transactions out from the IP core onto the wires connecting to a slave device. |
| slave device or connected slave | An IP core or device (or one of multiple interfaces on an IP core) that receives and responds to AXI transactions coming in to the IP core from the wires connecting to a master device. |
| master interface (generic) | An interface of an IP core or module that generates out-bound AXI transactions and thus is the initiator (source) of an AXI transfer. On AXI master interfaces, AWVALID, ARVALID, and WVALID are outputs, and RVALID and BVALID are inputs. |
| slave interface (generic) | An interface of an IP core or module that receives in-bound AXI transactions and becomes the target (destination) of an AXI transfer. On AXI slave interfaces, AWVALID, ARVALID, and WVALID are inputs, and RVALID and BVALID are outputs. |
| SI slot | Slave Interface Slot: A slice of the Slave Interface vector signals of the AXI Interconnect core that connect to a single master device. |
| MI slot | Master Interface Slot: A slice of the Master Interface vector signals of the AXI Interconnect core that connect to a single slave device. |
| SI-side | A module interface closer to the SI side of the AXI Interconnect core. |
| MI-side | A module interface closer to the MI side of the AXI Interconnect core. |
| Crossbar | Module at the center of the AXI Interconnect core that routes address, data, and response channel transfers between various SI slots and MI slots. |
| SI hemisphere | Conversion and storage modules of the AXI Interconnect core located between on the SI side of the crossbar. |
| MI hemisphere | Conversion and storage modules of the AXI Interconnect core located on the MI side of the crossbar. |
| upsizer | Data width conversion function in which the datapath width gets wider when moving in the direction from the SI-side toward the MI-side (regardless of write/read direction). |
| downsizer | Data width conversion function in which the datapath width gets narrower when moving in the direction from the SI-side toward the MI-side (regardless of write/read direction). |