Prelminary

MB91401

2004.11.12

Address

 

Register

 

 

Block

 

 

 

 

 

 

 

 

+ 0

+ 1

 

+ 2

 

+ 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

010F_0000H

BSR[R]

BCR[R/W]

 

CCR[R/W]

 

ADR[R/W]

 

 

00000000

00000000

 

10000000

 

1XXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

010F_0004H

DAR[R/W]

 

 

BC2R[R/W]

 

 

XXXXXXXX

 

 

00XX0000

I2C

 

 

 

 

 

010F_0008H

 

(Reserved)

 

 

 

 

to

 

 

 

 

 

 

 

 

 

 

 

010F_FFFFH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Address

 

Register

 

 

Block

 

 

 

 

 

 

 

 

+ 0

+ 1

 

+ 2

 

+ 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0110_0000H

DLCR0*

DLCR1[R, W]

 

DLCR2*

 

DLCR3[R/W]

LAN controller

 

0X000000

00000000

 

00000000

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0110_0004H

DLCR4*

DLCR5*

 

DLCR6*

 

DLCR7*

 

 

00000010

01000001

 

10000000

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0110_0008H

DLCR8[R/W]

DLCR9[R/W]

 

DLCR10[R/W]

 

DLCR11[R/W]

 

 

00000000

00000000

 

00000000

 

00000000

 

 

 

 

 

Bank 0

 

 

 

 

 

 

 

 

 

0110_000CH

DLCR12[R/W]

DLCR13[R/W]

 

 

 

 

 

 

 

00000000

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0110_0008H

MAR8[R/W]

MAR9[R/W]

 

MAR10[R/W]

 

MAR11[R/W]

 

 

00000000

00000000

 

00000000

 

00000000

 

 

 

 

 

Bank 1

 

 

 

 

 

 

 

 

 

0110_000CH

MAR12[R/W]

MAR13[R/W]

 

MAR14[R/W]

 

MAR15[R/W]

 

 

 

 

 

00000000

00000000

 

00000000

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0110_0008H

 

BMPR10*

 

BMPR11*

 

 

 

00000000

 

00000111

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0110_000CH

BMPR12*

 

BMPR14*

 

Bank 2

 

00000000

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0110_0010H

BMPR8

 

[R/W]

 

 

00000000-00000000

 

00000000-00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FILTER_CMD

 

 

 

 

0110_0014H

[R/W]

 

 

 

 

 

 

 

 

 

XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FILTER_STATUS

 

 

 

 

0110_0018H

[R]

 

 

 

 

 

 

 

 

 

XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FILTER_DATA

 

 

 

 

0110_001CH

[R/W]

 

 

 

 

 

 

 

 

 

XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FL_CONTROL

 

 

 

 

0110_0020H

[R/W]

 

 

 

 

 

 

 

 

 

XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FL_SUBNET

 

 

 

 

0110_0024H

[R/W]

 

 

 

 

 

 

 

 

 

XXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Continued)

 

 

 

 

 

 

 

 

39

Page 39
Image 39
Fujitsu MB91401 Bsrr BCRR/W CCRR/W ADRR/W, 1XXXXXXX, DARR/W BC2RR/W Xxxxxxxx, 010FFFFF H, DLCR0 DLCR1R, W DLCR2 DLCR3R/W

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.