Systems for changing hardware parameters using sub-CPU for sensi

Details Systems for changing hardware parameters using sub-CPU for sensi Systems for changing hardware parameters using sub-CPU for sensi

1992-03-25

1993-08-31

Harrell, Robert B.

Boots, shoes, and leggings

395275, 364234, 3642342, 364DIG1, 36470915, G06F 3023

Patent

active

052416461

ABSTRACT:
A register is provided for storing a key selection data indicating which key is depressed. A keyboard controller sets the key selection data to the register in response to the depression of the key. A timer interrupts a CPU at a predetermined interval. Each time being interrupted, the CPU refers the register to recognize which key is depressed and and performs switching of a hardware status if the key selection data indicates that a key assigned to switch the hardware status is depressed.

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patent: 4964075 (1990-10-01), Shaver et al.
patent: 5086503 (1992-02-01), Chung et al.
Motorola Inc., Motorola Microprocessors, Series C, 1983, Austin Texas, pp. 3-494 through 3-523.

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