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DSP56857 Fiches technique(PDF) 38 Page - Freescale Semiconductor, Inc

No de pièce DSP56857
Description  Digitial Signal Controller
PDF  662 Pages
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 Fiches technique(HTML) 38 Page - Freescale Semiconductor, Inc

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5685x Family Description
5685X Digital Signal Controller User Manual, Rev. 4
1-6
Freescale Semiconductor
1.2.1.4 The 56857
•
Provides two external dedicated interrupt lines
•
Provides up to 47-General Purpose Input/Output (GPIO) lines, depending on peripheral
configuration.
•
Includes 40K words of Program RAM
•
Includes 24K words of Data RAM
•
Includes 1K of Boot ROM
•
Provides a full set of standard programmable peripherals including:
— eight-bit Host Interface (HI8)
— two Enhanced Synchronous Serial Interface (ESSI)
— one Serial Peripheral Interface (SPI)
— two Serial Communications Interfaces (SCI)
— one Quad Timer (TMR)
— one, 6-channel Direct Memory Access (DMA)
The HI8, ESSIs, SPI, SCIs I/O and TMR can be used as General Purpose Input/Outputs when its
primary function is not required.
1.2.1.5 The 56858
•
Supports program execution from either internal or external memories
•
Provides two external dedicated interrupt lines
•
Provides up to 47-General Purpose Input/Output (GPIO) lines, depending on peripheral
configuration
•
Includes 40K words of Program RAM
•
Includes 24K words of Data RAM
•
Includes 1K of Boot ROM
•
Provides a full set of standard programmable peripherals that include:
— eight-bit Host Interface (HI8)
— two Enhanced Synchronous Serial Interfaces (ESSI)
— one Serial Peripheral Interface (SPI)
— two Serial Communications Interfaces (SCI)
— one Quad Timer (TMR)
— one, 6-channel Direct Memory Access (DMA)
The HI8, TMR, ESSIs, SPI, SCI’s I/O and four chip selects can be used as General Purpose
Input/Outputs when its primary function is not required.



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