Resources Contact Us Home
FIFO device

Image Number 5 for United States Patent #7606941.

A receiving FIFO device can prevent a PCI bus from being occupied unnecessarily to enhance the performance of a whole system. An input control part checks in a third comparing part whether or not a received packet written in a memory part is an error packet on the basis of acknowledge information contained in a trailer part of the received packet. If the received packet is the error packet, the input control part supplies a signal EMPTY being HIGH to an output control device and cancels the received packet, thereby preventing the error packet from being transferred to a receiving DMA device. Furthermore, the input control part checks in a second comparing part whether or not the received packet written in the memory part belongs to a predetermined type of packet on the basis of tcode information contained in the first quadret of a header part of the received packet. Only if the received packet belongs to the predetermined type of packet, the input control part cancels the received packet for a predetermined type of error.

  Recently Added Patents
Display screen with graphical user interface
Method for parking or exiting a parking bay and for avoiding a collision of a vehicle, and corresponding assistance systems and vehicle
System and method for oscillator frequency control
Methods and systems for automated segmentation of dense cell populations
Sampling switch circuit that uses correlated level shifting
Instantaneous single click perpetual date mechanism
Protecting information written to recording medium
  Randomly Featured Patents
Speckle reduction laser and laser display apparatus having the same
Process for producing oxide with higher oxidation than alcohol
Microwave aerosol waterometer
Point-of-use recycling of wafer cleaning substances
System and method for electronic spread trading in real and synthetically generated markets
Aqueous copolymer dispersions with reactive diluent
Printing blanket construction
Programmable clock delay circuit
Self-propelled forward movement mechanism for a movable body
Manufacturing method of one-time programmable read only memory