ST-ARM9资料3AN2339 Application note STR91x hardware development getting started Introduction The STR91x MCUs are derivatives of the STMicroelectronics STR9 family of 32-bit 0.18 HCMOS microcontrollers. They combine high CPU performance (CPU frequency up to 96 MHz) with rich peripheral functionalities and enhanced I/O capabilities. They offer up to 96 MIPS directly from Flash memory, very large SRAM with optional battery backup and support clock generation via PLL or via an external clock. The STR91x can perform signalcycle DSP instructions good for speech processing, audio algorithms, and low-end imaging. This application note provides a complement to the information in the STR91x datasheet and reference manual by describing the minimum hardware environment required to build an application around the ……