Real-time clock with extendable memory

Details Real-time clock with extendable memory Real-time clock with extendable memory

1997-04-30

1998-10-27

Tung, Kee M.

Electrical computers and digital processing systems: memory

Addressing combined with specific memory configuration or...

For multiple memory modules

711 1, 711202, 395551, 395557, 377 26, G06F 1202

Patent

active

058290087

ABSTRACT:
A real time clock plus user memory and extra memory integrated in a single circuit with access to the extra memory either by direct addressing or by providing the address as data to specified addresses in the user memory. Further, the user memory has two banks with the same addresses, and bank selection derives from a bit in another portion of the user memory.

REFERENCES:
patent: 4047245 (1977-09-01), Knipper
patent: 4168531 (1979-09-01), Eichelberger et al.
patent: 4462028 (1984-07-01), Ryan et al.
patent: 4628467 (1986-12-01), Nishi et al.
patent: 5226134 (1993-07-01), Aldereguia et al.

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