Overview
The TMS320C6748EZCEA3E is a fixed- and floating-point Digital Signal Processor (DSP) from Texas Instruments, based on the C674x DSP core. This device is designed as a low-power applications processor, offering significantly lower power consumption compared to other members of the TMS320C6000™ platform. It enables original-equipment manufacturers (OEMs) and original-design manufacturers (ODMs) to develop devices with robust operating systems, rich user interfaces, and high processor performance through a fully integrated, mixed-processor solution.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor Core | C674x Fixed- and Floating-Point VLIW DSP |
| Clock Speed | 375 MHz or 456 MHz |
| Cache Memory | 32KB L1P Program Cache, 32KB L1D Data Cache, 256KB L2 Unified Mapped RAM/Cache |
| General-Purpose Registers | 64 (32-Bit) |
| Memory Interfaces | EMIFA, NOR, NAND, 16-Bit SDRAM, DDR2/Mobile DDR Memory Controller |
| UART Modules | Three 16550-Type UART Modules with Modem Control Signals and 16-Byte FIFO |
| SPI Interfaces | Two Serial Peripheral Interfaces (SPIs) with Multiple Chip Selects |
| I2C Bus | Two Master and Slave Inter-Integrated Circuits (I2C Bus™) |
| Packages | 361-Ball Pb-Free PBGA (ZCE and ZWT suffixes) |
| Operating Voltage | Core: Variable (1.2V-1.0V for 375 MHz, 1.3V-1.0V for 456 MHz), I/O: 1.8V or 3.3V |
| Temperature Range | Commercial, Extended, or Industrial Temperature |
Key Features
- C674x Instruction Set Features: Superset of the C67x+ and C64x+ ISAs, up to 3648 MIPS and 2746 MFLOPS, byte-addressable (8-, 16-, 32-, and 64-Bit Data), 8-Bit overflow protection, bit-field extract, set, clear, normalization, saturation, bit-counting, and compact 16-bit instructions.
- Enhanced Direct Memory Access Controller 3 (EDMA3): 2 Channel Controllers, 3 Transfer Controllers, 64 Independent DMA Channels, 16 Quick DMA Channels, programmable transfer burst size.
- Load-Store Architecture with Nonaligned Support, hardware support for modulo loop operation, protected mode operation, exceptions support for error detection and program redirection.
- 128KB of RAM Shared Memory.
- Three 32-Bit Enhanced Capture (eCAP) Modules: configurable as 3 capture inputs or 3 auxiliary pulse width modulator (APWM) outputs.
- Two Multimedia Card (MMC)/Secure Digital (SD) Card Interfaces with Secure Data I/O (SDIO) Interfaces.
- LCD Controller and Video Port Interface (VPIF) for video capture and display.
- 10/100 Mbps Ethernet MAC (EMAC) with MII and RMII interfaces.
Applications
- Currency Inspection
- Biometric Identification
- Machine Vision (Low-End)
Q & A
- What is the TMS320C6748EZCEA3E based on? The TMS320C6748EZCEA3E is based on the C674x DSP core.
- What are the clock speed options for this DSP? The DSP is available in 375 MHz and 456 MHz versions.
- What type of cache memory does it have? It has 32KB L1P Program Cache, 32KB L1D Data Cache, and 256KB L2 Unified Mapped RAM/Cache.
- How many general-purpose registers does it have? It has 64 general-purpose registers (32-Bit).
- What types of memory interfaces are supported? It supports EMIFA, NOR, NAND, 16-Bit SDRAM, and DDR2/Mobile DDR Memory Controller.
- Does it have UART modules? Yes, it has three 16550-Type UART Modules with Modem Control Signals and 16-Byte FIFO.
- What is the purpose of the EDMA3 controller? The EDMA3 controller provides enhanced direct memory access with 2 Channel Controllers, 3 Transfer Controllers, 64 Independent DMA Channels, and 16 Quick DMA Channels.
- What is the operating voltage range for this DSP? The core voltage is variable (1.2V-1.0V for 375 MHz, 1.3V-1.0V for 456 MHz), and the I/O voltage is 1.8V or 3.3V.
- What are the package options for this DSP? It is available in 361-Ball Pb-Free PBGA (ZCE and ZWT suffixes).
- What are some of the key applications for this DSP? Key applications include currency inspection, biometric identification, and machine vision (low-end).
