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■ DESCRIPTION

The MB91230 series is a line of standard microcontrollers, based on a 32-bit high-performance RISC CPU and containing variety of I/O resources, for embedded control applications which require high CPU performance at high speed processing.

Audio motor control storage : Designed to specifications for embedded control applications which high CPU performance power processing.

The MB91230 series belongs to the FR60Lite family.

■ FEATURES

? 32-bit RISC, load/store architecture with a 5 stage pipeline

? Maximum operating frequency: 33.6 MHz

(oscillation frequency = 4.2 MHz, oscillation frequency 8-multiplier

(PLL clock multiplication method) )

? 16-bit fixed length instructions (basic instructions)

? Execution speed of instructions : 1 instruction per cycle

? Memory-to-memory transfer, bit handling, and barrel shift instructions, etc.

: Instructions suitable for embedded applications

? Function entry/exit instructions, multiple-register load/store instructions

: Instructions adapted for C-language

? Register interlock function : Facilitates coding in assembler

? Built-in multiplier with instruction-level support

- 32-bit multiplication with sign : 5 cycles

- 16-bit multiplication with sign : 3 cycles

? Interrupt (PC and PS save) : 6 cycles (16 priority levels)

? Harvard architecture allowing program access

and data access to be executed simultaneously

? Instruction compatible with FR family

? Capacity of built-in ROM and ROM type

- MASK ROM : 256 KB

- FLASH ROM : 256 KB

? Capacity of built-in RAM : 16 KB

? General-purpose ports : Maximum 98 ports

(including N-ch open-drain port : 4 ports)

? A/D converter (series-parallel type)

- Resolution : 10-bit : 8 ch (4 ch × 2 unit)

- Conversion time : 1.69 ?s (Minimum conversion time)

? D/A converter (R-2R type)

- Resolution : 8-bit : 2 ch (independence)

- Conversion speed : 0.6 ?s (when load capacitance 20 pF)

? External interrupt input : 16 ch

? Bit search module (for REALOS)

- Function for searching the MSB (Upper bit) in each word

for the first “0” or “1” inverted point

? UART (full-duplex double buffer) : 4 ch

- Selectable parity On/Off

- Asynchronous (start-stop synchronized) or

clock-synchronous communications selectable

- Internal timer for dedicated baud rate (U-timer) on each channel

- External clock can be used as transfer clock

- Error detection function for parity, frame and overrun

? PPG : 16-bit × 6 ch

? Up/down counter : 2 ch (8-bit × 2 ch or 16-bit × 1 ch)

? Reload timer : 16-bit × 4 ch

? Free-run timer : 16-bit × 2 ch

? Watch timer : 15-bit × 1 ch

? PWC : 8-bit × 2 ch

? Input capture : 2 ch (interface with free-run timer 0)

? Output compare : 4 ch

(free-run timer 0 and output compare unit 0/1 cooperate, free-run timer 1 and

output compare units 2/3)

? LCD controller : SEG00 to SEG31/COM0 to COM3 (also serving as a port)

? Clock monitor (peripheral clock output function) : 1 ch

? Timebase/watchdog timer (26-bit)

? Real-time clock (counting even with the real-time clock stopped)

? Low Power Consumption Mode

? Sleep/stop function

? Package : LQFP-120, FLGA-128

? Technology : CMOS 0.35 ?m

? Power supply

? Dual power supply configuration

[internal logic 3.3 V, I/O 5.5 V(3.3 V for ADC and DAC input/output)]