Features Of The Mb91301 Series - Fujitsu FR60 Hardware Manual

CHAPTER 1 OVERVIEW
1.1

Features of the MB91301 Series

The MB91301 series is a standard single-chip microcontroller that has a 32-bit high-
performance RISC CPU (FR family) as well as built-in I/O resources and bus control
mechanisms for embedded controller requiring high-performance and high-speed CPU
processing. Although the MB91301 series basically uses external bus access to
support a vast address space accessed by a 32-bit CPU, it has a 4-Kbyte instruction
cache memory and 4-Kbyte RAM to increase the speed at which the CPU executes
instructions.
This model is an FR60 model that is based on the FR30/40 of CPUs. It has enhanced
bus access and is optimized for high-speed use.
The MB91301 series is most suitable for embedded applications, such as digital video
cameras, navigation systems, and DVD players, that require a high level of CPU
processing power.
■ Features of the MB91301 Series
The MB91301 series has the line-up of series embedded the each of program in built-in ROM.
ROM variation
Products
MB91302A
■ FR CPU
• 32-bit RISC, load/store architecture, five pipelines
• Operating frequency of 68 MHz (Internal maximum value), 68 MHz (External maximum
value) [PLL used, original oscillation at 17 MHz]
• 32-bit general-purpose register x 16
• 16-bit fixed-length instructions (basic instructions), one instruction per cycle
• Memory-to-memory transfer, bit processing, instructions, including barrel shift, etc.;
instructions appropriate for embedded applications
• Function entry and exit instructions, multi load/store instructions--instructions compatible with
high-level languages
• Register interlock function to facilitate assembly-language coding
• Branch instruction with a delay slot allowing a decrease in overhead for branch processing
• Built-in multiplier/instruction-level support
- Signed 32-bit multiplication: 5 cycles
- Signed 16-bit multiplication: 3 cycles
• Interrupts (saving of PC and PS): 6 cycles, 16 priority levels
2
Real time OS IPL (internal
internal ROM program loader)
version internal version
O
User ROM
version
O O
No ROM version
O