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Article:Design of AHB protocol block for Advanced Microcontrollers
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 32 - Number 8 |
| Year of Publication: 2011 |
| Authors: Rishabh Singh Kurmi, Shruti Bhargava, Ajay Somkuwar |
10.5120/3924-5543
|
Rishabh Singh Kurmi, Shruti Bhargava, Ajay Somkuwar . Article:Design of AHB protocol block for Advanced Microcontrollers. International Journal of Computer Applications. 32, 8 ( October 2011), 23-29. DOI=10.5120/3924-5543
Abstract
The AMBA Advanced high performance bus (AHB) protocol design acts as an interface between two different IP cores. In this work initially the investigation on the AHB is carried out and the basic commands and its working are identified based on which the signal flow diagram and the specifications are developed for designing the AMBA-AHB using VHDL. In this paper we propose the design and implementation of a flexible arbiter scheme for the AHB busmatrix based on burst operation. Basically, AHB burst operation is that a sequence of operation happens with respect to the size given and it supports only three burst sizes. The size is acting as one of the input to the master during the burst operation and after each burst operation, the master or slave will go to the IDLE stage. The AHB design contains basic blocks such as master and slave and the working of these blocks based on arbitration scheme. According to arbitration scheme only one master can Access the bus at any one time. Multiplexer and Decoders are used to selects the appropriate signals between master and slaves that are involved in the transfer. This AMBA-AHB protocol can be adopted in all the applications provided the design should be an AHB compliant.
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