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Texas Instruments TMS320C6748 User Manual

Texas Instruments TMS320C6748
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TMS320C6748
SPRS590G JUNE 2009REVISED JANUARY 2017
www.ti.com
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Peripheral Information and Electrical Specifications Copyright © 2009–2017, Texas Instruments Incorporated
6.26 Universal Parallel Port (uPP)
The Universal Parallel Port (uPP) peripheral is a multichannel, high-speed parallel interface with dedicated
data lines and minimal control signals. It is designed to interface cleanly with high-speed analog-to-digital
converters (ADCs) or digital-to-analog converters (DACs) with up to 16-bit data width (per channel). It may
also be interconnected with field-programmable gate arrays (FPGAs) or other uPP devices to achieve
high-speed digital data transfer. It can operate in receive mode, transmit mode, or duplex mode, in which
its individual channels operate in opposite directions.
The uPP peripheral includes an internal DMA controller to maximize throughput and minimize CPU
overhead during high-speed data transmission. All uPP transactions use the internal DMA to provide data
to or retrieve data from the I/O channels. The DMA controller includes two DMA channels, which typically
service separate I/O channels. The uPP peripheral also supports data interleave mode, in which all DMA
resources service a single I/O channel. In this mode, only one I/O channel may be used.
The features of the uPP include:
Programmable data width per channel (from 8 to 16 bits inclusive)
Programmable data justification
Right-justify with zero extend
Right-justify with sign extend
Left-justify with zero fill
Supports multiplexing of interleaved data during SDR transmit
Optional frame START signal with programmable polarity
Optional data ENABLE signal with programmable polarity
Optional synchronization WAIT signal with programmable polarity
Single Data Rate (SDR) or Double data Rate (DDR, interleaved) interface
Supports multiplexing of interleaved data during SDR transmit
Supports demultiplexing and multiplexing of interleaved data during DDR transfers

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Texas Instruments TMS320C6748 Specifications

General IconGeneral
BrandTexas Instruments
ModelTMS320C6748
CategoryControl Unit
LanguageEnglish

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