Bus bridge

Details Bus bridge Bus bridge

1998-06-29

2000-10-03

Sheikh, Ayaz R.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

710126, 710127, 710128, 710129, 710130, 710113, 711200, 711 3, 711203, 711206, 711207, 711209, G06F 1200

Patent

active

061286842

ABSTRACT:
Disclosed is a bus bridge for mutually connecting a memory bus having memories connected thereto and an I/O bus having plural I/O devices connected thereto, which comprises a conversion table in which pairs of entry and physical address are included and which is divided into a fixed part and a refillable part; an address conversion means for converting a logical address supplied from the I/O device to a physical address supplied to the memory, while selectively using the fixed part or the refillable part in accordance with whether the logical address is in address remapping space or in I/O-TBL space; and refilling means for refilling the contents of the refillable part from a mother address conversion table on a memory in case that the logical address is in the I/O-TBL space and the entry corresponding to the logical address does not exist in the refillable part.

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patent: 5634027 (1997-05-01), Saito
patent: 5784708 (1998-07-01), Bridges et al.
patent: 5884027 (1999-03-01), Garbus et al.
patent: 5889970 (1999-03-01), Horan et al.
patent: 5913045 (1999-06-01), Gillespie et al.
patent: 5933626 (1999-08-01), Mahalingaiah et al.
patent: 5937435 (1999-08-01), Dobbek et al.

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