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Discover Microprocessor IC Fujitsu MB90F351ESPMC

Discover Microprocessor IC Fujitsu MB90F351ESPMC means compromise the protection system and readout the firmware from its eeprom and flash memory area:

Clock

· Built-in PLL clock frequency multiplication circuit

· Selection of machine clocks (PLL clocks) is allowed among frequency division by two on oscillation clock, and multiplication of 1 to 6 times of oscillation clock (for 4 MHz oscillation clock, 4 MHz to 24 MHz).

· Operation by sub clock (up to 50 kHz : 100 kHz oscillation clock divided by two) is allowed (devices without S-suffix only) .

· Minimum execution time of instruction : 42 ns (when operating with 4-MHz oscillation clock, and 6-time multiplied PLL clock).

· Built-in clock modulation circuit

• · 16 Mbytes CPU memory space

24-bit internal addressing

• · Instruction system best suited to controller

· Wide choice of data types (bit, byte, word, and long word)

· Wide choice of addressing modes (23 types)

· Enhanced multiply-divide instructions with sign and RETI instructions

• · Clock supervisor (MB90x356x and MB90x357x only)

· Main clock or sub clock is monitored independently.

· Internal CR oscillation clock (100 kHz typical) can be used as sub clock.

• · Enhanced high-precision computing with 32-bit accumulator
• · Instruction system compatible with high-level language (C language) and multitask

· Employing system stack pointer

· Enhanced various pointer indirect instructions

· Barrel shift instructions

• · Increased processing speed

4-byte instruction queue

• · Powerful interrupt function

· Powerful 8-level, 34-condition interrupt feature

· Up to 8 channels external interrupts are supported.

• · Automatic data transfer function independent of CPU

· Extended intelligent I/O service function (EI2OS) : up to 16 channels

· DMA : up to 16 channels

• · Low power consumption (standby) mode

· Sleep mode (a mode that stops CPU operating clock)

· Main timer mode (a timebase timer mode switched from the main clock mode)

· PLL timer mode (a timebase timer mode switched from the PLL clock mode)

· Watch mode (a mode that operates sub clock and watch timer only)

· Stop mode (a mode that stops oscillation clock and sub clock)

· CPU intermittent operation mode

• · Process

CMOS technology

• · I/O port

· General-purpose input/output port (CMOS output)

– 49 ports (devices without S-suffix : devices that correspond to sub clock)

– 51 ports (devices with S-suffix : devices that do not correspond to sub clock)

Sub clock pin (X0A, X1A)

· Yes (using the external oscillation) : devices without S-suffix

· No (using the sub clock mode at internal CR oscillation) : devices with S-suffix

• · Timer

· Timebase timer, watch timer, watchdog timer : 1 channel

· 8/16-bit PPG timer : 8-bit × 10 channels or 16-bit × 6 channels

· 16-bit reload timer : 2 channels (only Evaluation products has 4 channels)

· 16- bit input/output timer

– 16-bit free-run timer : 2 channels (FRT0 : ICU0/1, FRT1 : ICU4/5/6/7, OCU4/5/6/7)

– 16- bit input capture: (ICU) : 6 channels

– 16-bit output compare : (OCU) : 4 channels

• · FULL-CAN interface : 1 channel

· Compliant with CAN standard Version2.0 Part A and Part B

· 16 message buffers are built-in

· CAN wake-up function

• · UART (LIN/SCI) : 2 channels

· Equipped with full-duplex double buffer

· Clock-asynchronous or clock-synchronous serial transmission is available.

• · I2C interface*1 : 1 channel

Up to 400 kbps transfer rate

• · DTP/External interrupt : 8 channels, CAN wakeup : 1 channel

Module for activation of extended intelligent I/O service (EI2OS), DMA, and generation of external interrupt by external input after Discover Microprocessor IC Fujitsu MB90F351ESPMC.

• · Delay interrupt generator module

Generates interrupt request for task switching.

• · 8/10-bit A/D converter : 15 channels

· Resolution is selectable between 8-bit and 10-bit.

· Activation by external trigger input is allowed.

· Conversion time : 3 µs (at 24-MHz machine clock, including sampling time)

• · Program patch function

· Address matching detection for 6 address pointers.

• · Capable of changing input voltage level for port

· Automotive/CMOS-Schmitt (initial level is Automotive in single chip mode)

· TTL level (corresponds to external bus pins only, initial level of these pins is TTL in external bus mode)

• · Low voltage/CPU operation detection reset (devices with T-suffix)

· Detects low voltage (4.0 V ± 0.3 V) and resets automatically

· Resets automatically when program is runaway and counter is not cleared within interval time

(approx. 262 ms : external 4 MHz)

• · Dual operation Flash memory

· Erase/write and read can be executed in the different bank (Upper Bank/Lower Bank) at the same time.

• · Supported TA = + 125 °C

The maximum operating frequency is 24 MHz*2 : (at TA = +125 °C) .

 Flash security function

· Protects the content of Flash memory

(MB90F352x, MB90F357x only)

• · External bus interface

· 4 Mbytes external memory space

MB90F351E(S), MB90F351TE(S), MB90F352E(S), MB90F352TE(S) : External bus Interface can not be used in internal vector mode. It can be used only in external vector mode after Discover Microprocessor IC Fujitsu MB90F351ESPMC.

*1 : I2C license :

Purchase of Fujitsu I2C components conveys a license under the Philips I2C Patent Rights to use, these components in an I2C system provided that the system conforms to the I2C Standard Specification as defined by Philips.

*2 : If used exceeding TA = + 105 °C, be sure to contact Fujitsu for reliability limitations.