Automatic sizing memory system with multiplexed configuration si

Details Automatic sizing memory system with multiplexed configuration si Automatic sizing memory system with multiplexed configuration si

1987-05-14

1990-12-25

Williams, Jr., Archie E.

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3649292, 3649494, 3649652, 364964, 3649704, 3649705, 364942, 364959, 3649269, 36494071, G06F 1206, G06F 1314, G06F 928, G06F 9312

Patent

active

049808508

ABSTRACT:
In a memory module, signature data identifying the configuration of memory in that module is multiplexed onto a general memory data bus along with memory data normally transferred during memory access operations. A plurality of such memory modules can be combined in an automatic sizing memory system using a configuration status register to store configuration data for each of the memory modules. The configuration status register can include several independent status registers, each corresponding to a different memory module. Each of the status registers can contain a base address identifying the starting address of each of the modules. Elements in the configuration status register can then compare the addresses received from a central processor unit to the base address data in each of the status registers to select the memory module containing the location corresponding to each address. The status register can also contain validity and error indicators.

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