Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Single chip microcomputer with patching and configuration controlled by on-board non-volatile memory










Image Number 3 for United States Patent #4802119.

A single chip microcomputer with patching and configuration is provided with blocks of patch memory which may be patched over faulty and/or obsolete areas of the microcomputer's memory map under control of starting address registers which are implemented in on-board non-volatile memory. The starting address registers, and enable registers which control whether each patch block is placed in the memory map, are programmable under control of the microcomputer's CPU. Newly programmed values in these registers are not effective to alter the memory map until a reset sequence enables a latch. In particular embodiments, patch blocks may overlie mask ROM, internal EPROM and/or EEPROM, external memory or devices or any other desireable portion of the memory map.








 
 
  Recently Added Patents
Digital-to-analog converter and performing method thereof
Polymorphic forms of 3-(1-{3-[5-(1-methyl-piperidin-4-ylmethoxy)-pyrimidin-2-yl]-benzyl}-6-oxo- -1,6-dihydro-pyridazin-3-yl)-benzonitrile hydrochloride salt and processes of manufacturing t
Solid-state image sensing device and control method of solid-state image sensing device
Piperazinedione compounds
Performance apparatus and electronic musical instrument
Critical word forwarding with adaptive prediction
Multiplanar image displays and media formatted to provide 3D imagery without 3D glasses
  Randomly Featured Patents
Integrated voltage divider with selection circuit
Cranio-cervical sagittal-alignment caliper and universal measurement system
Restore circuit for semiconductor memory device and structure thereof
Mold core including ejection sleeve
Device for making accessible and closing an opening in a vehicle body
Antenna system for Doppler VOR ground stations
Computer support leg with sliding keyboard shelf
Antigens of Leishmania parasites
Method and apparatus for reading symbols on items moved by conveyor
High speed folding door