MB91121

www.DataSheet4U.com FUJITSU SEMICONDUCTOR DATA SHEET DS07-16303-2E 32-bit RISC Microcontroller CMOS FR30 Series MB91121 MB91121 s DESCRIPTION The MB91121 is a microcontroller with a 32-bit RISC CPU (FR family *) as the core, incorporating a variety of I/O resources, a bus control facility, and a multiplier-accumulator (simplified DSP) with internal program RAM for built-in control applications which require advanced, high-speed CPU processing. While being based on external bus access for supporting a vast address space accessed by the 32-bit CPU, it contains 1 K bytes of instruction cache memory and 4 K bytes of RAM (8 K bytes when the DSP is not used) for speeding up the execution of instructions by the CPU. In this way, the device is designed for built-in applications which require high performance and processing power of the CPU, such as digital camera, navigation system, and high-performance FAX, and printer controls. * : FR Family stands for FUJITSU RISC controller. s FEATURES 1. FR CPU 32-bit RISC, load/store architecture, 5-stage pipeline Operating clock frequency : Internal 50 MHz/external 25 MHz (PLL used at source oscillation 12.5 MHz) General purpose registers : 32 bits × 16 16-bit fixed length instructions (basic instructions) , 1 instruction/1 cycle Memory to memory transfer, bit processing, barrel shifter processing : Optimized for embedded applications (Continued) s PACKAGE 120-pin plastic LQFP (FPT-120P-M21) DataSheet 4 U .com www.DataSheet4...