CHAPTER 11 EXTERNAL INTERRUPT CIRCUIT 2 (LEVEL)

■Association between the Interrupt Enable Bits for External Interrupt Circuit 2 and the External Interrupt Pins

The interrupt enable bits are associated with the external interrupt pins as listed in Table 11.3-2 .

Table 11.3-2 Correspondence between the External Interrupt Enable Bits and the External Interrupt Pins

Register

 

Bit name

External interrupt pin

 

 

 

 

 

 

 

 

 

bit7

 

IE27

 

 

 

 

 

INT27

 

 

 

 

 

 

 

 

 

bit6

 

IE26

 

 

 

 

 

INT26

 

 

 

 

 

 

 

 

 

bit5

 

IE25

 

 

 

 

 

INT25

 

 

 

 

 

 

 

 

 

bit4

 

IE24

 

 

 

 

EIE2

 

INT24

 

 

 

 

 

 

 

bit3

 

IE23

 

 

 

 

 

 

 

 

INT23

 

 

 

 

 

 

 

 

 

bit2

 

IE22

 

 

 

 

 

INT22

 

 

 

 

 

 

 

 

bit1

 

IE21

 

 

 

 

 

INT21

 

 

 

 

 

 

 

 

bit0

 

IE20

 

 

 

 

 

INT20

 

 

 

 

 

 

 

 

248

Page 263 Page 265
Page 264
Image 264
Fujitsu MB89202, F202RA manual Register Bit name External interrupt pin, 248
Page 263 Page 265

F202RA, MB89202 specifications

The Fujitsu MB89202 and F202RA microcontrollers are part of the 16-bit microcontroller family, renowned for their robust performance and versatility in a variety of embedded system applications. These devices are tailored for high-efficiency operation across diverse industries, including automotive, consumer electronics, and industrial automation.

One of the main features of the MB89202 is its powerful CPU core, which operates at a clock speed of up to 20 MHz. This enables the microcontroller to perform complex calculations and consumer-grade applications seamlessly. The architecture is designed to handle multiple tasks effectively, making it suitable for real-time operations.

Memory capacity is a vital characteristic of the MB89202, featuring on-chip RAM and ROM configurations. The microcontroller can accommodate different memory variants, providing developers with flexibility in memory allocation based on their application requirements. This adaptability facilitates applications ranging from simple control systems to complex data processing tasks.

The F202RA variant extends the capabilities of the MB89202 by integrating advanced peripheral functions. It includes built-in timers, A/D converters, and serial communication interfaces, which are essential for interfacing with other hardware components or sensors. The availability of these peripherals reduces the need for additional external circuits, thus contributing to a more compact and cost-effective design.

In terms of power management, the MB89202 series employs advanced power-saving technologies. The microcontroller offers various low-power modes, enabling devices to conserve energy during idle times, making it highly suitable for battery-operated applications. This characteristic not only enhances the efficiency of devices but also extends their operational lifespan.

Moreover, the Fujitsu MB89202 series incorporates robust protection features, including watchdog timers and failure detection mechanisms. These safety features ensure reliable operation in critical systems, making them a preferred choice in applications where failure is not an option.

The MB89202 and F202RA microcontrollers also support a range of development tools and environments, including integrated development environments (IDEs) and software libraries, which facilitate rapid application development. With these tools, developers can efficiently prototype, debug, and optimize their applications.

In summary, the Fujitsu MB89202 and F202RA microcontrollers stand out with their efficient performance, extensive memory options, integrated peripherals, and power-saving capabilities, making them ideal for a wide array of embedded applications. Their reliability and robustness further enhance their attractiveness for designers seeking advanced microcontroller solutions.
Top Page Image Contents