DSP56857 datasheet(61/662 Pages) FREESCALE

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Peripheral Descriptions

5685X Overview, Rev. 4

Freescale Semiconductor

1-29

1.12.2 General Purpose Input/Output Port (GPIO)

•

56853

— 41 shared GPIO, multiplexed with other peripherals

— Each bit may be individually configured as an input or output

— Selectable enable for pull-up resistors

•

56854

— 41 shared GPIO, multiplexed with other peripherals

— Each bit may be individually configured as an input or output

— Selectable enable for pull-up resistors

•

56855

— 18 shared GPIO, multiplexed with other peripherals

— Each bit may be individually configured as an input or output

— Selectable enable for pull-up resistors

•

56857

— 47 GPIO, multiplexed with other peripherals (43 multiplexed and 4 dedicated)

— Each bit may be individually configured as an input or output

— Selectable enable for pull-up resistors

•

56858

— 47 GPIO, multiplexed with other peripherals

— Each bit may be individually configured as an input or output

— Selectable enable for pull-up resistors

1.12.3 Serial Communications Interface (SCI)

Each of the chips in the 56800E family has two Serial Communication Interfaces (SCI0 and

SCI1). SCI features include:

•

Asynchronous operation

•

Baud rate generation

•

IR interface support

DSP56857 데이터시트(PDF) 61 Page - Freescale Semiconductor, Inc