Implementation of Error Detection and Correction (EDAC) in the Static Random Access Memory (SRAM) Aboard Petite Amateur Navy Satellite (PANSAT).

reportActive / Technical Report | Accession Number: ADA297723 | Open PDF

Abstract:

This thesis documents the design of a bus controller that provides EDAC capability to the SRAM of an Intel M8OC 1 86XL Microprocessor running at 7.3728 MHz. The system was designed for use during a two-year mission in a low earth orbit on board PANSAT. The system uses standard CMOS components together with the Harris ACS630MS EDAC circuit to provide dual-bit error detection with single-bit error correction. The single-bit error correction process is transparent to the microprocessor. All single-bit errors detected are automatically corrected in memory during the same bus cycle in which they are detected. The EDAC circuit computes the check bits based upon a 16-bit data word. Byte write capability is provided by using a read-modify-write method. The system was built on a wire wrap development board and tested for proper operation. KAR P. 2

Author(s):
Oechsel, Craig R.
Author Organization(s):
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Descriptive Note:
Master's thesis,
Pagination:
0095

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NPS
 Subject Terms
Modernization Areas:
Space
Communities of Interest:
Space
Descriptor(s):
*MICROPROCESSORS, *RANDOM ACCESS COMPUTER STORAGE, *COMMUNICATION SATELLITES, *NAVAL EQUIPMENT, *ERROR CORRECTION CODES, *ERROR DETECTION CODES, SOFTWARE ENGINEERING, DETECTION, EARTH ORBITS, LOW ORBIT TRAJECTORIES, THESES, TRANSPARENCE, CYCLES, READ WRITE MEMORIES, MISSIONS, ERRORS, LIGHTWEIGHT, STATICS, ONBOARD, BUS CONDUCTORS, CORRECTIONS, BYTE FUNCTIONAL MODULES
Field(s)/Group(s):
Computer Programming and Software, Computer Hardware, Unmanned Spacecraft
Keyword(s):
EDAC(ERROR DETECTION AND CORRECTION), PANSAT(PETITE AMATEUR NAVY SATELLITE), SRAM(STATIC RANDOM ACCESS MEMORY), READ MODIFY WRITE MEMORIES, MICROSATELLITES
Report Date:
1995 Mar 01