Data transferring system between host and I/O using a main buffe

Details Data transferring system between host and I/O using a main buffe Data transferring system between host and I/O using a main buffe

1992-03-17

1996-04-09

Lee, Thomas C.

Boots, shoes, and leggings

395478, 395433, 364239, 3642396, 3642398, 364DIG1, G06F 1200

Patent

active

055070051

ABSTRACT:
A data transfer control apparatus for communicating data between a host device and an input/output device through a main buffer memory for temporarily holding the data, wherein a sub-buffer memory is disposed at least either between the main buffer memory and the host device or between the main buffer memory and the input/output device for temporarily storing the data, the amount of data stored in the sub-buffer memory is detected, access requests to the main buffer memory on the side of the host device or the input/output device are outputted in accordance with the detected data amount, and one of the access requests to the main buffer memory is selected in accordance with the priority order to access the main buffer memory on the basis of the selected access request.

REFERENCES:
patent: 4754399 (1988-06-01), Yamamoto et al.
patent: 5008808 (1991-04-01), Fries et al.
patent: 5072420 (1991-12-01), Conley et al.
patent: 5075805 (1991-12-01), Peddle et al.
patent: 5317713 (1994-05-01), Glassburn

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