Inter integrated circuit extension via shadow memory

Details Inter integrated circuit extension via shadow memory Inter integrated circuit extension via shadow memory

2008-04-01

2008-04-01

Rodriguez, Paul (Department: 2123)

Data processing: structural design, modeling, simulation, and em

Simulating electronic device or electrical system

Circuit simulation

C703S013000, C703S020000, C455S550100, C455S557000

Reexamination Certificate

active

07353158

ABSTRACT:
Embodiments of the present invention include a system for accessing a memory device comprising a master device coupled to a first serial bus. The system further comprises a slave device coupled to a second serial bus wherein the slave device comprises a first memory. The system further includes a slave device simulator coupled to the first serial bus and coupled to a long distance system specific interconnection, wherein the slave device simulator comprises a first shadow memory of the first memory and wherein a master device simulator is coupled to the second serial bus and coupled to the system specific interconnection. The master device comprises a second shadow memory of the slave device. Data read operations of the master may be satisfied directly from the slave device simulator shadow memory. Data writes from the master are propagated to the slave device and data coherency routines update the shadow memories accordingly.

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