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A Custom Designed RISC-V ISA Compatible Processor for SoC

Sharat, Kavya and Bandishte, Sumeet and Varghese, Kuruvilla and Bharadwaj, Amrutur (2017) A Custom Designed RISC-V ISA Compatible Processor for SoC. In: 21st International Symposium on VLSI Design and Test (VDAT), JUN 29-JUL 02, 2017, Indian Inst Technol Roorkee, Roorkee, INDIA, pp. 570-577.

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Official URL: https://dx.doi.org/10.1007/978-981-10-7470-7_55


RISC-V is an open Instruction Set Architecture (ISA) released by Berkeley Architecture Group from the University of California, at Berkeley (UCB) in 2010. This paper presents the architecture, design and complete implementation of a 32-bit customisable processor system containing a mix of features as listed below. The 32-bit processor based on RISC-V ISA, is capable of handling atomic operations in addition to all integer operations supported by the ISA. The design has a priority-based nested interrupt controller, giving the user an added flexibility to program the priority levels of interrupts. In addition, there is a debug unit which provides internal visibility during program execution. An error detection and correction interface to memories, makes the design resilient to radiation induced bit-flips. The on-chip communication interface follows the standard Wishbone specification. The design has been implemented on Xilinx Virtex-7 XC7VX48T FPGA and achieves a peak frequency of 80 MHz, with the processor stand-alone operating at 190MHz. On a 65 nm technology node, the design operates at a frequency of 170 MHz, while the processor stand-alone, a maximum frequency of 220MHz. The design occupies a footprint of 1.027 mm(2) with 32-KB on-chip memory.

Item Type: Conference Proceedings
Series.: Communications in Computer and Information Science
Additional Information: Copyright of this article belong to SPRINGER-VERLAG BERLIN, HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 20 Jul 2018 16:36
Last Modified: 20 Jul 2018 16:36
URI: http://eprints.iisc.ac.in/id/eprint/60265

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