A low-cost audio computer for information dissemination among illiterate people groups

Author

Foo, Z. ; Devescery, D. ; Ghaed, M. ; Lee, I. ; Madhavan, A. ; Park, Y. ; Rao, A. ; Renner, Z. ; Roberts, N. ; Schulman, A. ; Vinay, V. ; Wieckowski, M. ; Yoon, D. ; Schmidt, C. ; Schmid, T. ; Dutta, P. ; Chen, P. ; Blaauw, D.

Author_Institution

Univ. of Michigan Ann Arbor, Ann Arbor, MI, USA

fYear

2012

fDate

9-12 Sept. 2012

Firstpage

1

Lastpage

4

Abstract

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, 23mm², 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.

Keywords

audio signal processing; cache storage; digital signal processing chips; information dissemination; system-on-chip; ARM Cortex M0 processor; LIT; Literacy Information Technology chip; carbon zinc battery; developing region; illiterate people group; information dissemination; low power low cost audio processor; low-cost audio computer; memory hierarchy; off-chip flash; on chip true LRU cache; Batteries; Battery charge measurement; Carbon; Flash memory; Logic gates; System-on-a-chip; Zinc;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference (CICC), 2012 IEEE

Conference_Location

San Jose, CA

ISSN

0886-5930

Print_ISBN

978-1-4673-1555-5

Electronic_ISBN

0886-5930

Type

conf

DOI

10.1109/CICC.2012.6330652

Filename

6330652