What is AXI4 Stream?
The AXI4-Stream protocol is used as a standard interface to connect components that wish to exchange data. The interface can be used to connect a single master, that generates data, to a single slave, that receives data. The protocol can also be used when connecting larger numbers of master and slave components.
What is difference between AXI4 and AXI4-Lite?
AXI4: A high performance memory mapped data and address interface. Capable of Burst access to memory mapped devices. AXI4-Lite: A subset of AXI, lacking burst access capability.
How does AXI interconnect work?
The AXI Interconnect IP connects one or more AXI memory-mapped Master devices to one or more memory-mapped Slave devices. The AXI interfaces conform to the AMBA® AXI version 4 specifications from ARM®, including the AXI4-Lite control register interface subset.
What is AXI4 Lite?
AXI4-Lite is a subset of the AXI4 protocol intended for communication with simpler, smaller control register-style interfaces in components. The key features of the AXI4-Lite interfaces are: All transactions have a burst length of one. All data accesses are the same size as the width of the data bus.
What is burst in AXI?
An AXI ‘burst’ is a transaction in which multiple data items are transferred based upon a single address, and it is each data item transferred that is referred to as a ‘beat’.
What is the difference between AXI and AXI4?
1. AXI3 supports burst lengths up to 16 beats only. While AXI4 supports burst lengths of up to 256 beats.
What is AXI4 Xilinx?
AMBA® AXI4 (Advanced eXtensible Interface 4) is the fourth generation of the AMBA interface specification from ARM®. Xilinx Vivado Design Suite 2014 and ISE Design Suite 14 extends the Xilinx platform design methodology with the semiconductor industry’s first AXI4 Compliant Plug-and-Play IP.
What is the difference between AXI3 and AXI4?
AXI3 supports burst lengths up to 16 beats only. While AXI4 supports burst lengths of up to 256 beats.
What is write strobe in AXI?
The AXI write strobe signal is used to indicate which bytes of the write data bus are valid for each transfer of data. By using them you can perform sparse data transfers. For example; when performing a write transaction on a 32 bit data bus, you will have a WSTRB signal that’s 4 bits wide.