Features Of The Mb90895 Series - Fujitsu MB90895 Series Hardware Manual

CHAPTER 1 OVERVIEW
1.1

Features of the MB90895 series

MB90895 series devices are 16-bit micro general-purpose controllers designed for
applications which need high-speed real-time processing. The devices of this series are
high-performance 16-bit CPU micro controllers em-ploying of the dual operation flash
memory and CAN controller on LQFP-48 small package.
The instruction system is based on the architecture of the F
additional high-level language instructions, extended addressing modes, enhanced
multiply/divide instructions, and enriched bit processing instructions. A 32-bit
accumulator enables long-word data (32 bits) processing.
I Features of the MB90895 series
G
Clock
• Built-in PLL clock multiplying circuit
• Machine clock (PLL clock) selectable from 1/2 frequency of oscillation clock or 1 to 4 multiples of
oscillation clock (4 MHz to 16 MHz when oscillation clock is 4 MHz)
• Sub clock operation (8.192 kHz) (MB90F897)
• Minimum instruction execution time: 62.5 ns (4-MHz oscillation clock, 4-multiplied PLL clock)
G
16-MB CPU memory space
• Internal 24-bit addressing
G
Instruction system optimized for controllers
• Various data types (bit, byte, word, long word)
• 23 types of addressing modes
• Enhanced signed instructions of multiplication/division and RETI
• High-accuracy operations enhanced by 32-bit accumulator
G
Instruction system for high-level language (C language)/multitask
• System stack pointer
• Enhanced pointer indirect instructions
• Barrel shift instructions
G
Higher execution speed
• 4-byte instruction queue
G
Powerful interrupt function
• Powerful interrupt function with 8 levels and 34 factors
G
CPU-independent automatic data transfer function
• Extended intelligent I/O service (EI
2
2
OS): Maximum 16 channels
2
MC family and provides