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SM320VC5507-EP 数据表(PDF) 10 Page - Texas Instruments

部件名 SM320VC5507-EP
功能描述  Fixed-Point Digital Signal Processor
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

SM320VC5507-EP 数据表(HTML) 10 Page - Texas Instruments

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SM320VC5507-EP
www.ti.com
SPRS613 – SEPTEMBER 2009
2
Introduction
This section describes the main features of the SM320VC5507, lists the pin assignments, and describes
the function of each pin. This data manual also provides a detailed description section, electrical
specifications, parameter measurement information, and mechanical data about the available packaging.
NOTE
This data manual is designed to be used in conjunction with theTMS320C55x DSP
Functional Overview (literature number SPRU312), the TMS320C55x DSP CPU
Reference Guide (literature number SPRU371), and the TMS320C55x DSP Peripherals
Overview Reference Guide (literature number SPRU317).
2
2.1
Description
The SM320VC5507 fixed-point digital signal processor (DSP) is based on the SMS320C55x DSP
generation CPU processor core. The C55x™ DSP architecture achieves high performance and low power
through increased parallelism and total focus on reduction in power dissipation. The CPU supports an
internal bus structure that is composed of one program bus, three data read buses, two data write buses,
and additional buses dedicated to peripheral and DMA activity. These buses provide the ability to perform
up to three data reads and two data writes in a single cycle. In parallel, the DMA controller can perform up
to two data transfers per cycle independent of the CPU activity.
The C55x CPU provides two multiply-accumulate (MAC) units, each capable of 17-bit x 17-bit
multiplication in a single cycle. A central 40-bit arithmetic/logic unit (ALU) is supported by an additional
16-bit ALU. Use of the ALUs is under instruction set control, providing the ability to optimize parallel
activity and power consumption. These resources are managed in the Address Unit (AU) and Data Unit
(DU) of the C55x CPU.
The C55x DSP generation supports a variable byte width instruction set for improved code density. The
Instruction Unit (IU) performs 32-bit program fetches from internal or external memory and queues
instructions for the Program Unit (PU). The Program Unit decodes the instructions, directs tasks to AU and
DU resources, and manages the fully protected pipeline. Predictive branching capability avoids pipeline
flushes on execution of conditional instructions.
The 128K bytes of on-chip memory on 5507 is sufficient for many hand-held appliances, portable GPS
systems, wireless speaker phones, portable PDAs, and gaming devices. Many of these appliances
typically require 64K bytes or more on-chip memory but less than 128K bytes of memory, and need to
operate in standby mode for more than 60% to 70% of time. For the applications which require more than
128K bytes of on-chip memory but less than 256K bytes of on-chip memory, Texas Instruments (TI) offers
the TMS320VC5509A device, which is based on the TMS320C55x DSP core.
The general-purpose input and output functions and the10-bit A/D provide sufficient pins for status,
interrupts, and bit I/O for LCDs, keyboards, and media interfaces. The parallel interface operates in two
modes, either as a slave to a microcontroller using the HPI port or as a parallel media interface using the
asynchronous EMIF. Serial media is supported through three McBSPs.
The 5507 peripheral set includes an external memory interface (EMIF) that provides glueless access to
asynchronous memories like EPROM and SRAM, as well as to high-speed, high-density memories such
as synchronous DRAM. Additional peripherals include Universal Serial Bus (USB), real-time clock,
watchdog timer, and I2C multi-master and slave interface. Three full-duplex multichannel buffered serial
ports (McBSPs) provide glueless interface to a variety of industry-standard serial devices, and
multichannel communication with up to 128 separately enabled channels. The enhanced host-port
interface (HPI) is a 16-bit parallel interface used to provide host processor access to 32K bytes of internal
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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