Patent · US Expired

Microcomputer and method of determining completion of writing in the microcomputer

US6298412A · kind A · utility

2Cited by
2References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 22, 1998
Grant dateOct 2, 2001
Priority date
Expiry dateDec 22, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C16/102
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

When writing of data into nonvolatile memories 8H and 8L is started, data D7 and D15 corresponding to the 128th word of a data input section 8B are inverted and outputted. When accurate writing is subsequently performed, the data D7 and D15 are outputted as they are. By monitoring a change of the data D7 and D15 from the nonvolatile memories 8H and 8L, it is possible to detect whether writing is still continuing or has already completed. Thus, by using nonvolatile memories of 8 bit data width or the like, a 16-bit microcomputer can be easily realized.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.