AMBA AXI-04 is an IP protocol which supports 16, masters and slaves interfacing. AMBA AXI-04 system consists of master, slave and interconnect. The system consists of five channels namely write address channel, write data channel, read address channel, read data channel, and write response channel. The AXI-04 update to AXI-03 includes the following: support for burst lengths up to 256 beats, updated write response requirements, removal of locked transactions and AXI-04 also includes information on the interoperability of components. The work aims to design master, slave and interconnect modules according to AMBA AXI-04 protocol, modelled in Verilog HDL. The simulation results for read and write operation of address and data are shown in VCS tool. The master and slave components have an interface with the test layer which provides necessary stimulus. This test layer is built exclusively to initiate the transaction and provide the meaningful inputs to master and slave. The operating frequency is set to 100MHz. Two test cases are run to perform multiple read and multiple write operations. To perform single read operation the module takes 160ns and for single write operation 565ns.
The book “Universal Serial Bus Port Device Protection Circuit-A Practical Approach” is having three chapters. First Chapter discusses in details on development of USB devices and their practical application. Data transfer speed of USB 2.0 & 3.0 from external USB devices to Desktop or portable computer and vice-versa are also included. Second chapter is about discrete components used in short circuit protection of USB devices and their identification, operating and testing procedure on the sensible ground. Third chapter proposes circuit to prevent short circuit, over voltage, over current and Electro-Static Discharge(ESD) protection with the help of discrete components,IC’s, Polyzen and SMD devices. A comparative study and technical benefit of USB 2.0 & USB 3.0 is also included for the benefit of the readers. Another important feature of the book is introduction of various electronic components. Author tried to make this book more practical oriented utilizing his 8 years of practical teaching experiences at various levels. This book will be useful for practitioners since the tools and technique required for detection of faulty USB port is explain in details in this book