Introduction
●This section describes the main features, gives a brief functional overview of the TMS320VC5470, lists the pin assignments, and provides a signal description table. The data manual also provides a detailed description section, electrical specifications, parameter measurement information, and mechanical data section describing the available packaging.
●Description
●The TMS320VC5470 integrates a DSP subsystem based on the TMS320C54x architecture and a RISC microcontroller subsystem based on the ARM7TDMI core as shown in Figure 2−1. The DSP subsystem ncludes 72K x 16-bit SRAM, a timer, a DMA controller, an external memory interface, and two McBSPs. The MCU subsystem includes three timers, general-purpose I/O, and an external memory interface.
●TMS320VC5470 Features
●• Dual CPU Processor Integrating a TMS320C54x DSP and an ARM7TDMI RISC MCU
●• 16-Bit Low-Power DSP With 72K x 16-bit Integrated SRAM Operates at up to 100 MHz
●• Smart Power Management and Low-Power Modes for DSP and MCU Subsystems
●• Integrated DSP Subsystem Peripherals
● − Two High-Speed, Full-Duplex Multichannel Buffered Serial Ports (McBSPs) Allowing the DSP Core to Interface Directly With CODECs
● − Six-Channel Direct Memory Access (DMA) Controller Enabling Six Independent Block Transfers With No Intervention From the DSP
● − ARM Port Interface (API) Provides 2K x 16-Bit Shared Memory Interface for Efficient Information Exchange Between the MCU Subsystem and the DSP Subsystem CPUs
● − External Memory Interface
● − Software-Programmable Wait-State Generator Capable of Extending External Bus Cycles By Up To 14 Machine Cycles
● − One Software-Programmable Hardware Timer For Control Operations
● − Programmable Phase-Locked Loop (PLL) Clock Generator
●• ARM7TDMI RISC Microcontroller Core With 16K Bytes of Integrated SRAM and Enhanced Emulation Capabilities Operates at Up To 47.5 MHz
●• Integrated MCU Subsystem Peripherals
● − Universal Asynchronous Receiver/Transmitter (UART)
● − UART/IrDA Interface Which Supports the Slow Infrared (SIR) Protocol
● − Serial Peripheral Interface
● − Thirty-Six General-Purpose I/O Pins
● − Inter-Integrated Circuit (I2C) Interface
● − Two General-Purpose Timers
● − One Watchdog Timer
● − Interrupt Handler
● − Interface to External Memory Supports Flash, SRAM, SDRAM, ROM
● − Flexible Clock Management for MCU Peripherals
● − Programmable Phase-Locked Loop (PLL) Clock Generator
●• On-Chip Scan-Based Emulation Logic, IEEE Std 1149.1† (JTAG) Boundary Scan Logic of DSP and MCU Cores
●• Supports Scan-Based Emulation of DSP and MCU Cores
●• 257-Ball MicroStar BGA (GHK Suffix) Package
