Arbiter for transferring largest accumulated data block output f

Details Arbiter for transferring largest accumulated data block output f Arbiter for transferring largest accumulated data block output f

1998-04-09

2000-08-01

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

710107, 710240, G06F 1314

Patent

active

060981245

ABSTRACT:
An improved system and method for transferring data over a serial bus. Incoming data is stored into data buffers with a dynamically variable size. The size of each data buffer may be adjusted as new data come in. Data with the same originating address are stored in the same data buffer. An arbiter, coupled to the data buffers and to the serial bus, monitors each of the data buffers and the availability of the serial bus. When the serial is available, the arbiter transfers data from one of the data buffers according to some predetermined priority. For example, the largest buffer may have the highest priority. Such an assignment of priority makes very efficient use of the serial bus since larger amounts of data have less overhead and are thus more efficient to transfer. In addition, while data is transferring out of one of the data buffers, data is accumulating in all the other buffers. This makes the other buffers larger and more efficient to transfer upon later availability of the serial bus. The arbiter may also include logic for determining how long it has been since the last time data was transferred out of each data buffer which ensures not starving data in the data buffers.

REFERENCES:
patent: 4082922 (1978-04-01), Chu
patent: 5367654 (1994-11-01), Furukawa et al.
patent: 5724351 (1998-03-01), Chao et al.
patent: 5796961 (1998-08-01), O'Brien
patent: 5916309 (1999-06-01), Brown et al.

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