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3
Ingeniería Electrónica
Sistemas Electrónicos Digitales Avanzados
Need for an EMIF
Traditional DSP (with no EMIF):
Peripheral/
Peripheral/
Memory
Memory
H/W
H/W
Interface
Interface
DSP
DSP
When interfacing a slow peripheral/memory to a fast
DSP, some hardware interface is required.
This hardware interface requires fast components in
order to keep up with the DSP.
Need for an EMIF
4
Ingeniería Electrónica
Sistemas Electrónicos Digitales Avanzados
Need for an EMIF
Traditional DSP (with no EMIF):
Peripheral/
Peripheral/
Memory
Memory
H/W
H/W
Interface
Interface
DSP
DSP
Drawback of the hardware interface:
High cost (additional components).
Power consumption.
Difficult to debug.
Cannot be upgraded.
Prone to errors.
Need for an EMIF (II)
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