syncronous serial interface laboratorio dsp y fpga itba 2010

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Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

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Page 1: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Syncronous Serial Interface

Laboratorio DSP y FPGAITBA 2010

Page 2: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Syncronous Serial Interface

Modo de funcionamiento configurable:

•Word Length•Shift Direction•Clock•Frame Sync•Interrupciones•Modo normal / network

Page 3: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Word Length

Page 4: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Shift Direction

Page 5: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Clock

• Externo vs Interno

• Prescaler

• Sync vs Async– Sync: TX y RX con mismo clock– Async: TX y RX con clocks independientes

Page 6: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Clock

• Gated vs Continuous

Page 7: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Diagrama en bloques

Page 8: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Frame Sync

• Word Length

• Bit Length

Page 9: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Double Buffer

Page 10: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Interrupciones – DSP56002

Page 11: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Puerto C – DSP56002

Page 12: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Puerto C – DSP56002

Page 13: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Flags

Page 14: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Network Mode

Page 15: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Network Mode

• 2 – 32 words / frame

• Frame Sync indica comienzo de trama

• Asignación de time slots por soft

• TSR desactiva la salida (high-z)

Page 16: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Programming sheets

Page 17: Syncronous Serial Interface Laboratorio DSP y FPGA ITBA 2010

Referencias

• DSP56002 User’s manual