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ASH1: a Stack-Based Input/ Output Processor for USB Operations

Al-Dujaili, Abdullah and Lo, Hai Hiung and Tan, Shawn (2015) ASH1: a Stack-Based Input/ Output Processor for USB Operations. In: IEEE International Conference on Circuit And Systems, 2nd Sep, 2015 to 4th Sep 2015, Langkawi.

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Abstract

This paper describes a work in progress: ASH1, an 8- bit input/ output processor (IOP) that is designed to be able to perform USB operations. It has a stack-based architecture where most of the operations are done on the top elements of the stack. The instruction set consists of 17 14-bit instructions optimized for framing and driving software code. ASH1 communicates with the main processing unit (Master CPU) through a wishbone bus. It has been proven reliably at 50 MHz in an Altera Cyclone II FPGA device. With around 1400 FPGA slices and a maximum clock frequency of 90 MHz, ASH1 could make a good substitute for big USB IP Cores. Future work includes making ASH1 MAC Ethernet capable and USB2 compatible.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Academic Subject One:Computer System Architecture
Departments / MOR / COE:Mission Oriented Research > Megacities
ID Code:11777
Deposited By: Mr Hai Hiung Lo
Deposited On:07 Oct 2016 01:42
Last Modified:07 Oct 2016 01:42

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