A low-power microcontroller with on-chip self-tuning digitalclock-generator for variable-load applications
Olivieri, M.
Trifiletti, A.
De Gloria, A.
Rome Univ.;
This paper appears in: Computer Design, 1999. (ICCD '99) International Conference on
Publication Date: 1999
On page(s): 476-481
Meeting Date: 10/10/1999 - 10/13/1999
Location: Austin, TX, USA
ISBN: 0-7695-0406-X
References Cited: 6
INSPEC Accession Number: 6422959
Digital Object Identifier: 10.1109/ICCD.1999.808583
Current Version Published: 2002-08-06
Abstract
Clock disabling for power management has been implemented in some
microcontrollers, but the wake-up time of Xtal/PLL-based systems is
incompatible with fast interrupt response. On the other hand, hardwired
on-chip clocking has been used for dedicated circuits. We illustrate the
design issues of a general-purpose microcontroller core with a
programmable on-chip fully-digital clock generator. The CPU is
compatible with the PIC16C57 instruction set and supports
software-controlled clocking modes-ranging from 44 MHz up to 124 MHz;
on-line self-tuning of the maximum full-speed frequency in case of
peak-performance requirements; ultra-fast wake-up even with totally
disabled clock generator-namely 8.6 ns
Index
Terms
Available to subscribers and IEEE members.
References
Available to subscribers and IEEE members.
Citing Documents
Available to subscribers and IEEE members.
Cart
