What is burst transfer in AHB?
The benefit of a burst over a series of single transfers is simple: the slave can prepare for the next transfer while handling the current transfer since it “knows” the next address since addresses in a burst always increment by the same value.
What is the size of max data can be transferred in single transfer in AHB?
1024 bits
The protocol allows for larger transfer sizes up to a maximum of 1024 bits.
Why there is 4K boundary in AXI?
The granularity of mapping in AXI is 4KB. That means the smallest “block” of addresses that can be assigned to a given slave/peripheral is 4K*. And all allocations are multiples of 4K. So when you cross a 4K boundary you are potentially going from slave A’s address space to slave B’s.
What is burst transfer?
Burst mode is a temporary high-speed data transmission mode used to facilitate sequential data transfer at maximum throughput. Burst mode data transfer rate (DTR) speeds can be approximately two to five times faster than normal transmission protocols.
What is Burst mode in AXI protocol?
The AXI protocol uses burst-based addressing, which means that each transaction consists of a number of data transfers. Typically, each data transfer is aligned to the size of the transfer. For example, a 32-bit wide transfer is usually aligned to four-byte boundaries.
How does the burst transfer affect the performance?
A burst transfer is well known technique to improve the performance of memory subsystems. The burst transfer capability offers an average access time reduction of more than 65 percent for an eight-word sequential transfer.
What is burst length?
Burst length is number of data transfers for the burst like if ur burst length is 4 then the burst is 4 number of sequential data. now the burst size is like width of that each data, As per the AXI4 spec the burst size should be min of 8bits (1byte) that can be called as beat.