Resources Contact Us Home
Data transfer control unit for reducing memory requirements in an information processor by converting bit width of data being transferred between memory and processing parts

Image Number 17 for United States Patent #5802399.

A data transfer control unit for controlling data transfer between a main processing part executing information processing and a memory part accessed by the main processing part has a bit width control part for controlling the bit width of the transferred data so that a first bit width of a port for data input/output on the main processing part side is matched with a second bit width, which is narrower than the first bit width, of a port for data input/output on the memory part side. This bit width control part has a function of converting the bit width of the data to the second bit width in case of data transfer from the main processing part to the memory part and a function of converting the same to the first bit width in case of data transfer from the memory part to the main processing part. Thus, the capacity of the memory part can be reduced by adjusting the bit width of the data transferred between the main processing part and the memory part.

  Recently Added Patents
Laser processing method and apparatus
Magnetic storage apparatus
Transistor and display device
Multicolored light converting LED with minimal absorption
Methods and apparatus to determine impressions using distributed demographic information
Electrode tab for secondary battery and secondary battery using the same
Method of and apparatus for image denoising
  Randomly Featured Patents
Hydrogen recovery by alcohol scrubbing in alcohol amination
Data communication apparatus
Method, apparatus and system for transmitting and receiving an image signal having superimposed information and for extracting information superimposed on an image signal
Method and new distributor for delivering high velocity gas from a gas distributor through a nozzle with decreased erosion in the nozzle
Noise reduction in high definition television signals
Scanning beam position detecting apparatus for use in electronic printer
Compositions and methods for treating malaria with cupredoxin and cytochrome
Image forming apparatus provided with a device for controlling communication with a central supervisory apparatus
Hot-pressed transparent ceramics and ceramic lasers
Arrangement for aligning heat-sealable lids on mating product-filled containers