Backup memory control unit with reduced current consumption...

Details Backup memory control unit with reduced current consumption... Backup memory control unit with reduced current consumption...

2006-08-01

2006-08-01

Trujillo, James K. (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S320000, C713S323000, C713S324000, C713S340000, C365S226000, C365S227000, C365S228000, C365S229000

Reexamination Certificate

active

07085946

ABSTRACT:
A backup memory control unit can reduce the current consumption when a memory (SDRAM) is inactive by providing the memory with an unsettled mode in which no power is supplied to the memory. It provides the memory with the unsettled mode, and halts the power supply from a backup power supply to the SDRAM in the unsettled mode in which the SDRAM is not in operation, thereby limiting an increase in the current consumption. The functions are executed by a hardware circuit without using a backup microcomputer.

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“Advanced Configuration and Power Interface Specification”, Feb. 2, 1999, Intel Corp., Microsoft Corp., Toshiba Corp., Revision 1.0b, pp.: 1-2, 220-225.
Tanenbaum, “Structured Computer Organization”, 1984, Prentice Hall, pp.: 10-12.

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