DS07-16303-3E Datasheet, PDF (1/97 Pages) Fujitsu Component Limited. – 32-bit RISC Microcontroller CMOS FR30 Series

FUJITSU SEMICONDUCTOR
DATA SHEET
32-bit RISC Microcontroller
CMOS
FR30 Series MB91121
MB91121
DS07-16303-3E
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
s PACKAGE
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120-pin plastic LQFP
(FPT-120P-M21)