Multitasking microcontroller for controlling the physical...

Details Multitasking microcontroller for controlling the physical... Multitasking microcontroller for controlling the physical...

2006-10-24

2006-10-24

Follansbee, John (Department: 2154)

Electrical computers and digital processing systems: virtual mac

Task management or control

Process scheduling

C712S233000, C712S243000

Reexamination Certificate

active

07127718

ABSTRACT:
There is disclosed an apparatus for controlling a physical layer interface of a network interface card in real time. The apparatus comprises: 1) a first memory for storing a multitasking control program, the multitasking control program comprising a main routine and a plurality of subroutines callable by the main routine; 2) a second memory for storing a plurality of multitasking vectors associated with the multitasking control program; and 3) a microcontroller for executing the multitasking control program, wherein program execution control is transferred from the main routine to a first one of the plurality of subroutines when the first subroutine is called by the main routine and wherein the first subroutine, upon encountering a decision point in the first subroutine that is not yet capable of being decided, updates a first one of the plurality of multitasking vectors associated with the first subroutine with an address of the decision point and transfers program execution control back to the main routine.

REFERENCES:
patent: 4530051 (1985-07-01), Johnson et al.
patent: 5127096 (1992-06-01), Kaneko et al.
patent: 6182238 (2001-01-01), Cooper
patent: 6260157 (2001-07-01), Schurecht et al.

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