Prelminary

 

 

 

 

 

MB91401

2004.11.12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Continued)

 

 

 

 

 

 

 

 

 

Address

 

Register

 

 

Block

 

 

 

 

 

 

 

 

 

 

+ 0

+ 1

 

+ 2

+ 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_046CH

ICR44[R/W]

ICR45[R/W]

 

ICR46[R/W]

ICR47[R/W]

 

Interrupt Control

 

 

---11111

---11111

 

---11111

---11111

 

Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0470H

 

 

 

 

 

to

 

 

Reserved

 

 

0000_047CH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0480H

RSRR [R/W]

STCR [R/W]

 

TBCR [R/W]

CTBR [R/W]

 

 

 

 

10000000*2

00110011*2

 

00XXXX00*1

XXXXXXXX

 

Clock Control

 

 

 

 

 

 

 

0000_0484H

WPR [W]

 

DIVR0 [R/W]

DIVR1 [R/W]

 

Unit

 

 

Access disallowed

XXXXXXXX

 

00000011*1

00000000

 

 

 

 

0000_0488H

 

 

 

 

 

 

 

to

 

 

 

 

Reserved

 

 

0000_063FH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0640H

ASR0

[R/W]

 

ACR0

[R/W]

 

 

 

 

00000000

00000000

 

1111**00

00000000*3

 

 

 

 

 

 

 

 

 

 

0000_0644H

ASR1

[R/W]

 

ACR1

[R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0648H

ASR2

[R/W]

 

ACR2

[R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_064CH

ASR3

[R/W]

 

ACR3 [R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0650H

ASR4

[R/W]

 

ACR4 [R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0654H

ASR5 [R/W]

 

ACR5 [R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0658H

ASR6 [R/W]

 

ACR6 [R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_065CH

ASR7 [R/W]

 

ACR7 [R/W]

 

Memory IF

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0660H

AWR0 [R/W]

 

AWR1 [R/W]

 

 

 

 

01111111 11111111

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0664H

AWR2 [R/W]

 

AWR3 [R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0668H

AWR4 [R/W]

 

AWR5 [R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_066CH

AWR6 [R/W]

 

AWR7 [R/W]

 

 

 

 

XXXXXXXX XXXXXXXX

 

XXXXXXXX XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0670H

MCRA

MCRB

 

 

 

 

 

XXXXXXXX

XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0674H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000_0678H

IOWR0 [R/W]

IOWR1 [R/W]

 

IOWR2 [R/W]

 

 

 

 

XXXXXXXX

XXXXXXXX

 

XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Continued)

37

Page 37
Image 37
Fujitsu MB91401 manual Address Register Block

MB91401 specifications

The Fujitsu MB91401 microcontroller is a versatile device designed for automotive applications, embedded systems, and industrial control. It belongs to the MB91400 series, known for its robustness and efficiency. This series integrates advanced features and technologies that cater to a wide variety of real-time applications.

One of the standout features of the MB91401 is its 32-bit RISC architecture, which operates at clock speeds up to 40 MHz. This high-performance core enables rapid processing and data handling, making it suitable for demanding applications. The microcontroller is equipped with a generous amount of Flash memory, allowing developers to store essential firmware and applications directly on the chip, enhancing reliability and reducing design complexity.

Another key characteristic is its extensive memory configuration, which includes SRAM for data storage and EEPROM for non-volatile data retention. This combination provides flexibility for developers, enabling them to tailor the memory allocation based on specific application requirements.

The MB91401 is designed with a focus on peripheral integration. It features multiple I/O ports, timer units, and A/D converters, making it an ideal choice for applications that require precise timing and analog signal processing. The analog-to-digital converters offer high resolution and fast conversion speeds, which are critical in automotive and industrial control systems where accuracy is paramount.

Safety is a critical consideration in automotive applications, and the MB91401 addresses this with built-in diagnostic features and error detection capabilities. These features help ensure that the application remains functional and safe under various operating conditions.

In terms of connectivity, the microcontroller supports various communication protocols, including CAN, UART, and SPI, facilitating seamless integration with other systems and devices. This is particularly important in automotive applications where communication between different electronic control units (ECUs) is essential for overall system functionality.

The Fujitsu MB91401 is also designed for low power consumption, making it suitable for battery-operated devices and energy-sensitive applications. Its various power-saving modes allow developers to optimize the system's performance while extending operational life.

In summary, the Fujitsu MB91401 is a powerful and flexible microcontroller that combines high-performance processing with extensive peripheral support and safety features. Its robust architecture and energy-efficient design make it an excellent choice for a wide range of automotive and industrial applications, promoting both reliability and innovation in embedded system development.