Packet error detecting device in a DMA transfer

Details Packet error detecting device in a DMA transfer Packet error detecting device in a DMA transfer

1997-12-22

2000-08-15

Grant, William

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

714752, 714753, 714746, 714764, 370351, H03M 1300

Patent

active

061051608

ABSTRACT:
A packet error detecting device for detecting the existence of an error of the packet data transferred by a packet switching in a DMA transfer, comprising an operation unit formed by hardware for executing a necessary operation to detect a packet error in the packet data received in every block, a DMA controller for DMA transferring data from a memory storing the received data to the operation unit, previous to the DMA transfer of the data toward an external device, and a CPU for performing an error procedure if detecting a packet error as the result of the error detection by the operation unit.

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Prokin, "DMA Transfer method for Wide-Range Speed and Frequency Measurement", IEEE. pp. 842-846, Aug. 1993.
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James E. Goldman, "Applied Data Communications a Business-Orented Approach" John Wiley & Sons, p. 77, 1995.
M. Honda et al., Development of an ATM Network Server, NEC Technology Bulletin, vol. 50, No. 6, Jul., 1997, pp. 114-119.
J. Touch, B. Parham, Implementing the Internet Checksum in Hardware, Internet RFC1936, Apr., 1996.

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