A Low-Cost Audio Computer for Information Dissemination Among Illiterate People Groups

Z. Foo, D. Devescery, M. H. Ghaed, I. Lee, A. Madhavan, Y. Park, A. S. Rao, Z. Renner, N. E. Roberts, A. D. Schulman, V. S. Vinay, M. Wieckowski (+6 others)
2013 IEEE Transactions on Circuits and Systems Part 1: Regular Papers  
We present LIT, a low power, low cost audio processor for information dissemination to and among illiterate people in developing regions. The 265K gate, 8 million transistor, 23mm 2 , ARM Cortex M0 processor uses a novel memory hierarchy consisting of an on chip 128kB true LRU cache and off-chip flash. It is designed for efficient operation on Carbon Zinc batteries and has a high-level of integration to reduce cost.
doi:10.1109/tcsi.2013.2264693 fatcat:dppdwsdblvh5hdk5572o5mg6ci