Multicasting system for selecting a group of memory devices for

Details Multicasting system for selecting a group of memory devices for Multicasting system for selecting a group of memory devices for

1996-03-19

1999-01-12

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Addressing combined with specific memory configuration or...

Dynamic-type storage device

711 1, 711 5, 711111, 711112, 370390, G06F 1200

Patent

active

058600809

ABSTRACT:
A system and method for multicasting control signals to selectively operate one memory device or groups of memory devices comprises a memory controller coupled to a plurality of memory devices by a command bus and a data bus. Each of the plurality of memory devices has a unique identification number. The system provides an addressing scheme in which an individual memory device or groups of memory device can be selected for operation by addressing the devices with a command packet. The memory controller broadcasts a command packet over the command bus to the plurality of memory devices. The packet includes an identification number. At each of the memory devices, selection logic is included to make the memory device operational if the identification number in the packet matches the identification number assigned to the memory device. The address in the packet is preferably encoded such that identification number has the same size regardless of whether a single memory device is being selected for operation or a group of memory devices are being selected for operation. The present invention also includes a method for selecting groups of memory devices for operation by multicasting a select address comprising the steps of: providing an memory identification number to each memory device, transmitting an memory device selection address, comparing the memory device selection address to the memory identification number, and asserting a signal to make the memory device operational if the memory device selection address and the memory identification number match.

REFERENCES:
patent: 4792947 (1988-12-01), Tahiyasu et al.
patent: 5079767 (1992-01-01), Perlman
patent: 5459725 (1995-10-01), Bodner et al.
patent: 5539737 (1996-07-01), Lo et al.
patent: 5644571 (1997-07-01), Seaman
patent: 5758070 (1998-05-01), Lawrence
IEEE Computer Society, IEEE Draft Standard for High-Bandwidth Memory Interface Based on SCI Signaling Technology (RAMLINK), May 19, 1995:(pp. i-104).

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