A Microcontroller Interface for Embedded Non-volatile Memory on Micro Mirror Projector ASIC Calibration

This paper presents a digital controller interface for an non-volatile memory (NVM) IP [1] which is part of an embedded 8051 microprocessor system. The embedded microprocessor system is targeted to be integrated as part of a micro mirror projection ASIC for MEMS scanner control and sensing [2]. The NVM memory controller interface with the storage of NVM is used to calibrate the position of micro mirror MEMS on the fly during the projection scanning mode, and store and load the configuration parameters for ASIC module initialization during power up stage. The design has been fabricated with 0.18 μm CMOS process and measurement result proves the full function of the design concept.