■ DESCRIPTION
The MB90540/545 series with FULL-CAN*1 and FLASH ROM is specially designed for automotive and industrial applications. Its main features are two on board CAN Interfaces (one for MB90V545 series) , which conform to V2.0 Part A and Part B, supporting very flexible message buffer scheme and so offering more functions than a normal full CAN approach. The instruction set by F2MC-16LX CPU core inherits an AT architecture of the F2MC*2 family with additional instruction sets for high-level languages, extended addressing mode, enhanced multiplication/division instructions, and enhanced bit manipulation instructions.The micro controller has a 32-bit accumulator for processing long word data.The MB90540/545 series has peripheral resources of 8/10-bit A/D converters, UART (SCI) , extended I/O serial interfaces, 8/16-bit timer, I/O timer (input capture (ICU) , output compare (OCU)).

■ FEATURES
• Clock
   Embedded PLL clock multiplication circuit Operating clock (PLL clock) can be selected from : divided-by-2 of oscillation or one to four times the oscillation Minimum instruction execution time : 62.5 ns (operation at oscillation of 4 MHz, four times the oscillation clock) Subsystem Clock : 32 kHz
• Instruction set to optimize controller applications
   Rich data types (bit, byte, word, long word)
   Rich addressing mode (23 types)
   Enhanced signed multiplication/division instruction and RETI instruction functions
   Enhanced precision calculation realized by the 32-bit accumulator
• Instruction set designed for high level language (C language) and multi-task operations
   Adoption of system stack pointer
   Enhanced pointer indirect instructions
   Barrel shift instructions
• Program patch function (for two address pointers)
• Enhanced execution speed : 4-byte Instruction queue
• Enhanced interrupt function : 8 levels, 34 factors
• Automatic data transmission function independent of CPU operation
   Extended intelligent I/O service function (EI2OS)
• Embedded ROM size and types
   Mask ROM : 256 Kbytes / 64 Kbytes / 128 Kbytes
   Flash ROM : 128 Kbytes/256 Kbytes
   Embedded RAM size : 2 Kbytes/4 Kbytes/6 Kbytes/8 Kbytes (evaluation chip)
• Flash ROM
   Supports automatic programming, Embedded Algorithm TM*
   Write/Erase/Erase-Suspend/Resume commands
   A flag indicating completion of the algorithm
   Hard-wired reset vector available in order to point to a fixed boot sector in Flash Memory
   Erase can be performed on each block
   Block protection with external programming voltage
• Low-power consumption (stand-by) mode
   Sleep mode (mode in which CPU operating clock is stopped)
   Stop mode (mode in which oscillation is stopped)
   CPU intermittent operation mode
   Clock mode
   Hardware stand-by mode
• Process
   0.5 µm CMOS technology
• I/O port
   General-purpose I/O ports : 81 ports
• Timer
   Watchdog timer : 1 channel
   8/16-bit PPG timer : 8/16-bit × 4 channels
   16-bit re-load timer : 2 channels
• 16-bit I/O timer
   16-bit free-run timer : 1 channel
   Input capture : 8 channels
   Output compare : 4 channels
• Extended I/O serial interface : 1 channel
• UART 0
   With full-duplex double buffer (8-bit length)
   Clock asynchronized or clock synchronized (with start/stop bit) transmission can be selectively used.
• UART 1
   With full-duplex double buffer (8-bit length)
   Clock asynchronized or clock synchronized serial (extended I/O serial) can be used.
• External interrupt circuit (8 channels)
   A module for starting an extended intelligent I/O service (EI2OS) and generating an external interrupt which is triggered by an external input.
• Delayed interrupt generation module
   Generates an interrupt request for switching tasks.
• 8/10-bit A/D converter (8 channels)
   8/10-bit resolution can be selectively used.
   Starting by an external trigger input.
   Conversion time : 26.3 µs
• FULL-CAN interfaces
   MB90540 series : 2 channel
   MB90545 series : 1 channel
   Conforming to Version 2.0 Part A and Part B
   Flexible message buffering (mailbox and FIFO buffering can be mixed)
• External bus interface : Maximum address space 16 Mbytes
• Package: QFP-100, LQFP-100