Asynchronous FIFO Design for Bi-mode MAC protocol

When any protocol is implemented FIFO design is the mandatory module, which provides delay compensation and synchronization between two clock domain signals. Media access control (MAC) is the sublayer of Data link layer in the OSI model of computer networking. Each layer in the model has defined set of protocols to handle particular operation in the data transfer. MAC is responsible detecting and fixing the error during the data transfer, which intern has many protocols to handle the tasks. The major module in MAC protocol is FIFO which collects data from the upper layer, encapsulates it and transmit the data to physical layer. This paper presents the design of asynchronous FIFO module for the MAC protocol that operates at bi-mode, i.e., two data link speeds based on application requirement.