Keil ST STR912FAW44 ARM MCU开发评估方案

Keil公司的MCBSTR9评估板适用于ST公司的STR91xMCU系列，用来产生和测试应用程序，包括了单片STR9系统的所有硬件元件，以开发目前和未来的产品。本文介绍了ST公司的STR91xFAxxx 主要特性，方框图以及MCBSTR9评估板主要特性，方框图，技术数据和电路图。
STR91xFAxxx：ARM966E-S™ 16/32-bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR91xFA is a series of ARM-powered microcontrollers which combines a 16/32-bit ARM966E-S RISC processor core, dual-bank Flash memory, large SRAM for data or code, and a rich peripheral set to form an ideal embedded controller for a wide variety of applications such as point-of-sale terminals, industrial automation, security and surveillance, vending machines, communication gateways, serial protocol conversion, and medical equipment. The ARM966E-S core can perform single-cycle DSP instructions, good for speech processing, audio algorithms, and low-end imaging.
The STR91xFA is a SiP device, comprised of two stacked die. One die is the ARM966E-S CPU with peripheral interfaces and analog functions, and the other die is the burst Flash.
The two die are connected to each other by a custom high-speed 32-bit burst memory interface and a serial JTAG test/programming interface.
STR91xFAxxx 主要特性：
■ 16/32-bit 96 MHz ARM9E based MCU
– ARM966E-S RISC core: Harvard architecture, 5-stage pipeline, Tightly-Coupled Memories (SRAM and Flash)
– STR91xFA implementation of core adds high-speed burst Flash memory interface, instruction prefetch queue, branch cache
– Up to 96 MIPS directly from Flash memory
– Single-cycle DSP instructions supported
– Binary compatible with ARM7 code
■ Dual burst Flash memories, 32-bits wide
– 256 KB/512 KB/1 MB/2 MB main Flash
– 32 KB/128 KB secondary Flash
– Sequential Burst operation up to 96 MHz
– 100 K min erase cycles, 20 yr min retention
■ SRAM, 32-bits wide
– 64K or 96K bytes, optional battery backup
■ 9 programmable DMA chann...