System and method employing extended memory capacity detection

Details System and method employing extended memory capacity detection System and method employing extended memory capacity detection

1992-12-01

1994-04-19

Gossage, Glenn

Boots, shoes, and leggings

395425, 364DIG1, G06F 1202

Patent

active

053054458

ABSTRACT:
A memory system of a computer, such as a lap-top type personal computer, uses a standard memory having a reserve region of, for example, 384 KB or 512 KB, and an extended memory of, for example, 1 MB or 2 MB, mounted in a memory extend slot. The memory extend slot can produce a memory type signal representative of the type of extended memory. A capacity detector detects the capacity of the extended memory mounted in the memory extend slot based on the memory type signal output from the memory extend slot. A memory controller then assigns a reserve region to an address region following the address region of the extended memory, based on the capacity detection signal output from the capacity detector.

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