FUJITSU SEMICONDUCTOR
DATA SHEET
DS07-16301-2E
32-bit RISC Microcontroller
CMOS
FR30 Series
MB91101/MB91101A
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DESCRIPTION
The MB91101 is a standard single-chip microcontroller constructed around the 32-bit RISC CPU (FR* family)
core with abundant I/O resources and bus control functions optimized for high-performance/high-speed CPU
processing for embedded controller applications. To support the vast memory space accessed by the 32-bit
CPU, the MB91101 normally operates in the external bus access mode and executes instructions on the internal
1 Kbyte cache memory and 2 Kbytes RAM for enhanced performance.
The MB91101 is optimized for applications requiring high-performance CPU processing such as navigation
systems, high-performance FAXs and printer controllers.
*: FR Family stands for FUJITSU RISC controller.
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FEATURES
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
Function entrance/exit instructions, multiple load/store instructions of register contents, instruction systems
supporting high level languages
• Register interlock functions, efficient assembly language coding
• Branch instructions with delay slots: Reduced overhead time in branch executions
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PACKAGE
100-pin Plastic LQFP
100-pin Plastic QFP
(FPT-100P-M05)
(FPT-100P-M06)
FUJITSU [ FUJITSU COMPONENT LIMITED. ]
