The 14th International Conference on VLSI Design (VLSID '01)
Design Of Provably Correct Storage Arrays
Bangalore, India
January 03-January 07
ISBN: 0-7695-0831-6
In this paper we describe a hardware design method for memory and register arrays that allows the application of formal equivalence checking for comparing a high-level register transfer level (RTL) specification with a low-level transistor implementation. Equivalence checking is increasingly applied in practical design flows to verify regular logic components. However, because of their specific organization and circuit techniques, high-performance implementations of large storage arrays require particular modifications to the general flow that make them suitable for formal equivalence checking. Two techniques are outlined in this paper. First, a special hierarchical verification scheme is described that allows the application of a partitioned comparison approach of the bit-wise organized transistor-level model with the word-wise organized RTL model. Second, a modified switch-level extraction technique is presented that extends the applicability of equivalence checking from regular dynamic CMOS circuits to self-resetting CMOS (SRCMOS) circuits.
Citation:
R.V. Joshi, W. Hwang, A. Kuehlmann, "Design Of Provably Correct Storage Arrays," vlsid, pp.196, The 14th International Conference on VLSI Design (VLSID '01), 2001