Method for automatically detecting the size of a memory by perfo

Details Method for automatically detecting the size of a memory by perfo Method for automatically detecting the size of a memory by perfo

1990-08-16

1993-01-12

Lee, Thomas C.

Boots, shoes, and leggings

395800, 395400, 364DIG1, 364245, 36424531, G06F 1202, G06F 1300

Patent

active

051796864

ABSTRACT:
A method for detecting the size of a DRAM memory includes the steps of establishing a table of memory bank configurations each having a different memory capacity, selecting one of the memory configuration, writing and reading a data word at the lowest address in the bank having the highest memory capacity, writing a data word at an address higher than the lowest address, reading the data word at the lowest address and storing the selected memory configuration in a storage register as the memory configuration of the memory when the data word read at the lowest address was not the word written at the highest address.

REFERENCES:
patent: 3898631 (1975-08-01), Brown et al.
patent: 4562532 (1985-12-01), Nishizawa et al.
patent: 4571676 (1986-02-01), Mantellina et al.

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