SM320F28335-EP 特性供大家参考：
High-Performance Static CMOS Technology
Up to 150 MHz (6.67-ns Cycle Time)
1.9-V/1.8-V Core, 3.3-V I/O Design
High-Performance 32-Bit CPU
IEEE-754 Single-Precision Floating-Point Unit (FPU))
16 × 16 and 32 × 32 MAC Operations
16 × 16 Dual MAC
Harvard Bus Architecture
Fast Interrupt Response and Processing
Unified Memory Programming Model
Code-Efficient (in C/C++ and Assembly)
Six Channel DMA Controller (for ADC, McBSP, ePWM, XINTF, and SARAM)
16-bit or 32-bit External Interface (XINTF)
Over 2M x 16 Address Reach
On-Chip Memory
256K × 16 Flash, 34K × 16 SARAM
1K × 16 OTP ROM
Boot ROM (8K × 16)
With Software Boot Modes (via SCI, SPI, CAN, I2C, McBSP, XINTF, and Parallel I/O)
Standard Math Tables
