VLSI Design with Alliance Free CAD Tools: an Implementation Example

Ramón Chávez-Bracamontes, Reyna Itzel García-López, Marco Antonio Gurrola-Navarro, Manuel Bandala-Sánchez


This paper presents the methodology used for a digital integrated circuit design that implements the communication protocol known as Serial Peripheral Interface, using the Alliance CAD System. The aim of this paper is to show how the work of VLSI design can be done by graduate and undergraduate students with minimal resources and experience. The physical design was sent to be fabricated using the CMOS AMI C5 process that features 0.5 micrometer in transistor size, sponsored by the MOSIS Educational Program. Tests were made on a platform that transfers data from inertial sensor measurements to the designed SPI chip, which in turn sends the data back on a parallel bus to a common microcontroller. The results show the efficiency of the employed methodology in VLSI design, as well as the feasibility of ICs manufacturing from school projects that have insufficient or no source of funding.

Palabras clave

VLSI design; Alliance CAD system; MOSIS Educational Program; SPI

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