Overview
The TMS320C6748EZCED4E is a fixed- and floating-point Digital Signal Processor (DSP) from Texas Instruments, based on the C674x DSP core. This low-power applications processor is designed to provide significantly lower power consumption compared to other members of the TMS320C6000™ platform. It enables original-equipment manufacturers (OEMs) and original-design manufacturers (ODMs) to quickly develop devices with robust operating systems, rich user interfaces, and high processor performance through a fully integrated, mixed processor solution.
Key Specifications
| Specification | Details |
|---|---|
| Processor Speed | 375 MHz and 456 MHz |
| Instruction Set Architecture | Superset of the C67x+ and C64x+ ISAs |
| MIPS and MFLOPS | Up to 3648 MIPS and 2746 MFLOPS |
| Cache Memory | 32KB L1P Program RAM/Cache, 32KB L1D Data RAM/Cache, 256KB L2 Unified Mapped RAM/Cache |
| General-Purpose Registers | 64 General-Purpose Registers (32-Bit) |
| ALU Functional Units | Six ALU (32- and 40-Bit) Functional Units |
| Floating-Point Support | Supports 32-Bit Integer, SP (IEEE Single Precision/32-Bit) and DP (IEEE Double Precision/64-Bit) Floating Point |
| DMA Channels | 64 Independent DMA Channels, 16 Quick DMA Channels |
| Timers | Three 64-Bit General-Purpose Timers (Each Configurable as Two 32-Bit Timers), One 64-Bit General-Purpose or Watchdog Timer |
| Pulse Width Modulators | Two Enhanced High-Resolution Pulse Width Modulators (eHRPWMs) |
| Capture Modules | Three 32-Bit Enhanced Capture (eCAP) Modules |
| External Memory Interfaces | EMIFA, NOR, NAND, SDRAM, DDR2/Mobile DDR Memory Controller |
| Operating Supply Voltage | 1.3 V |
| Package Type | 361-Ball Pb-Free Plastic Ball Grid Array (PBGA) |
Key Features
- Two Independent Programmable Real-Time Unit (PRU) Cores with 32-Bit Load-Store RISC Architecture and 4KB of Instruction RAM Per Core
- C674x Instruction Set Features including byte-addressable data, 8-bit overflow protection, bit-field extract, set, clear, normalization, saturation, and bit-counting
- Compact 16-Bit Instructions and two-level cache memory architecture
- Enhanced Direct Memory Access Controller 3 (EDMA3) with 64 independent DMA channels and 16 quick DMA channels
- Load-Store Architecture With Nonaligned Support and 64 General-Purpose Registers (32-Bit)
- Six ALU (32- and 40-Bit) Functional Units supporting up to four SP additions per clock and four DP additions every two clocks
- Support for SATA I (1.5 Gbps) and SATA II (3.0 Gbps) with hardware-assisted native command queueing (NCQ)
- Real-Time Clock (RTC) With 32-kHz Oscillator and Separate Power Rail
- Three 32-Bit Enhanced Capture (eCAP) Modules configurable as capture inputs or auxiliary pulse width modulator (APWM) outputs
- Two Enhanced High-Resolution Pulse Width Modulators (eHRPWMs) with dedicated 16-bit time-base counter and period and frequency control
Applications
- Currency Inspection
- Biometric Identification
- Machine Vision (Low-End)
- Embedded Analytics
- Devices requiring robust operating systems, rich user interfaces, and high processor performance
Q & A
- What is the processor speed of the TMS320C6748EZCED4E?
The processor speed is 375 MHz and 456 MHz.
- What is the cache memory architecture of the TMS320C6748EZCED4E?
The device features a two-level cache memory architecture with 32KB L1P Program RAM/Cache, 32KB L1D Data RAM/Cache, and 256KB L2 Unified Mapped RAM/Cache.
- How many general-purpose registers does the TMS320C6748EZCED4E have?
The device has 64 general-purpose registers, each 32 bits wide.
- What types of floating-point operations does the TMS320C6748EZCED4E support?
The device supports 32-bit integer, SP (IEEE Single Precision/32-bit), and DP (IEEE Double Precision/64-bit) floating-point operations.
- What is the role of the Enhanced Direct Memory Access Controller 3 (EDMA3) in the TMS320C6748EZCED4E?
The EDMA3 provides 64 independent DMA channels and 16 quick DMA channels, enhancing data transfer efficiency.
- Does the TMS320C6748EZCED4E support SATA interfaces?
Yes, it supports SATA I (1.5 Gbps) and SATA II (3.0 Gbps) with hardware-assisted native command queueing (NCQ).
- What types of timers are available on the TMS320C6748EZCED4E?
The device includes three 64-bit general-purpose timers (each configurable as two 32-bit timers) and one 64-bit general-purpose or watchdog timer.
- What is the purpose of the Enhanced High-Resolution Pulse Width Modulators (eHRPWMs) in the TMS320C6748EZCED4E?
The eHRPWMs provide dedicated 16-bit time-base counters with period and frequency control, supporting various PWM configurations.
- What are the key features of the Enhanced Capture (eCAP) Modules in the TMS320C6748EZCED4E?
The eCAP modules are configurable as capture inputs or auxiliary pulse width modulator (APWM) outputs and support single-shot capture of up to four event timestamps.
- What are the typical applications of the TMS320C6748EZCED4E?
The device is used in applications such as currency inspection, biometric identification, machine vision (low-end), and devices requiring robust operating systems and high processor performance.
