MB90540/540G/545/545G Series
• 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 (EI
2
OS)
• 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.
(Continued)
2
FUJITSU [ FUJITSU COMPONENT LIMITED. ]
