Fast RAM for use in an address translation circuit and method of

Details Fast RAM for use in an address translation circuit and method of Fast RAM for use in an address translation circuit and method of

1997-12-17

2000-02-29

Bragdon, Reginald G.

Electrical computers and digital processing systems: memory

Address formation

Address mapping

711156, 36518903, 365203, 365206, 36523006, G06F 1210

Patent

active

060322411

ABSTRACT:
There is disclosed, for use in an x86-compatible processor having a physically-addressable cache, an address translation device for translating linear addresses received from a plurality of linear address sources and selectively accessing physical addresses, linear addresses, and controls signals stored in the address translation device. The address translation device comprises: 1) an array of data cells for storing the physical addresses, linear addresses, and controls signals in a plurality of entries; 2) an entry selection circuit for receiving a first linear address from a first linear address source and, in response thereto, generating an entry select output corresponding to the first linear address; 3) a first switch controllable by the entry select output; and 4) a second switch controllable by an address source select signal received from the first linear address source, wherein the entry select output and the address source select signal close the first and second switches to thereby form a connection path, the formation of the connection path causing a selected data cell to transfer a stored target bit stored therein to a data bit line of the address translation device.

REFERENCES:
patent: 5546555 (1996-08-01), Horstmann et al.

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