MB91F158 Datasheet, PDF (1/90 Pages) Fujitsu Component Limited. – 32-bit Proprietary Microcontrollers

FUJITSU SEMICONDUCTOR
DATA SHEET
DS07-16316-1E
32-bit Proprietary Microcontrollers
CMOS
FR30 MB91F158
MB91F158
s DESCRIPTION
The MB91F158 is a microcontroller for CD/DVD using a RISC-CPU (FR 30 series) as its core.
s FEATURES
1. CPU
• 32-bit RISC (FR30) , load/store architecture, 5-stage pipeline
• General-purpose registers : 32 bits × 16
• 16-bit fixed-length instructions (basic instructions) , 1 instruction/ 1 cycle
• Memory-to-memory transfer, bit processing, barrel shift processing : Optimized for embedded applications
• Function entrance/exit instructions, and multiple load/store instructions of register contents, instruction systems
supporting high level languages
• Register interlock functions, efficient assembly language description
• Branch instructions with delay slots : Reduced overhead time in branching executions
• Internal multiplier/supported at instruction level
Signed 32-bit multiplication : 5 cycles
Signed 16-bit multiplication : 3 cycles
• Interrupt (PC and PS saving) : 6 cycles, 16 priority levels
• Support for little endian mode
2. Bus Interface
• 24-bit address output, 8/16-bit data input and output
• Basic bus cycle : 2-clock cycle
• Support for interface for various types of memory
• Unused data/address pins can be configured us input/output ports
• Support for little endian mode
s PACKAGE
(Continued)
120-pin plastic LQFP
(FPT-120P-M05)