Computer system for arbitrating the operation of a built-in mode

Details Computer system for arbitrating the operation of a built-in mode Computer system for arbitrating the operation of a built-in mode

1991-10-30

1994-10-11

Bowler, Alyssa H.

Boots, shoes, and leggings

3642222, 3642385, 3642382, 364DIG1, G06F 100

Patent

active

053555074

ABSTRACT:
A computer system having a system body, a CPU, a modem control register, a built-in modem board, and an extended unit. When both the modem board and the extended unit are connected to the system body, the CPU determines whether the base address of the modem board is also the same as the base address of the extended unit. If same base address is used, the CPU sets hardware control data into the modem control register, which disables the modem board, whereby the modem board is disabled.

REFERENCES:
patent: 4987588 (1991-01-01), Fukuma et al.
patent: 5162675 (1992-11-01), Olsen et al.

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