System for DMA data reception capable of confirming the content

Details System for DMA data reception capable of confirming the content System for DMA data reception capable of confirming the content

1998-02-17

2000-11-21

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

709231, 709236, 709250, G06F 1314

Patent

active

061516422

ABSTRACT:
There are provided a reception apparatus using direct memory access (DMA), a reception method and a memory medium, allowing one to confirm the content of the received data in the DMA data reception, even when the received data are shorter than a preset data length. In a DMA reception apparatus capable of making a request for an interruption to the MPU 1 in response to the reception of data of y bytes from the host computer, there is also made a setting of x bytes in addition to the setting of y bytes, in order to confirm the data content when the length of the data transmitted from the host computer is less than y bytes, and a request for interruption is made upon reception of data of x bytes from the host computer.

REFERENCES:
patent: 4502117 (1985-02-01), Kihara
patent: 5386532 (1995-01-01), Sodos
patent: 5412782 (1995-05-01), Hausman et al.
patent: 5485584 (1996-01-01), Hausman et al.
patent: 5872920 (1999-02-01), Hausman et al.
patent: 5983275 (1999-11-01), Ecclesine

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