Serial interface for reprogramming multiple network...

Details Serial interface for reprogramming multiple network... Serial interface for reprogramming multiple network...

2007-01-30

2007-01-30

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Reconfiguration

C713S001000, C709S221000

Reexamination Certificate

active

10859045

ABSTRACT:
An apparatus for transferring a replacement program into dedicated memories in a plurality of network interface cards includes: 1) a replacement program memory for storing the replacement program; 2) a first microcontroller coupled to the replacement program memory and having a first dedicated memory associated therewith; and 3) a second microcontroller coupled to the replacement program memory and having a second dedicated memory associated therewith. The first microcontroller monitors a first signal line to the replacement program memory to determine if the second microcontroller is transferring the replacement program from the replacement program memory to the second dedicated memory. The first microcontroller, in response to a determination that the second microcontroller is transferring the replacement program, transfers at least a portion of the replacement program to the first dedicated memory as the replacement program is read from the replacement program memory by the second microcontroller.

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IBM, Microcontroller Instruction Execute Diagnostic Procedure, Jul. 1, 1976, IBM Technical Disclosure Bulletin, vol. 19, Issue 2, pp. 649-650.

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