CHAPTER 1 OVERVIEW

1.7Pin Functions Description

Table 1.7-1 describes the I/O pins and functions.

The letters in the circuit type column shown in Table 1.7-1 correspond to the letters in the Circuit Type column shown in Table 1.8-1 .

■Pin Functions Description

Table 1.7-1

Pin Functions Description (1/2)

 

 

 

 

 

 

 

 

Pin No.

 

Pin

Circuit

Function

 

 

 

 

 

 

 

 

name

type

SHDIP32*1

 

SSOP34*2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

8

 

X0

A

Pins for connecting the crystal for the main clock. To use an

 

 

 

 

 

 

 

 

external clock, input the signal to X0 and leave X1 open.

9

 

9

 

X1

 

 

 

 

 

 

 

 

 

 

 

5, 6

 

5, 6

P60,

H / E

General-purpose CMOS input port.

 

 

 

 

P61

 

 

 

 

 

 

 

 

 

 

 

7

 

7

 

 

 

 

C

Reset I/O pin.

 

RST

 

 

 

 

 

 

 

 

This pin serves as an N-ch open-drain reset output and a reset input

 

 

 

 

 

 

 

 

as well. The reset is a hysteresis input.

 

 

 

 

 

 

 

 

It outputs the "L" signal in response to an internal reset request.

 

 

 

 

 

 

 

 

Also, it initializes the internal circuit upon input of the "L" signal.

 

 

 

 

 

 

 

28, 29

 

30, 31

 

P00/

G

General-purpose CMOS I/O ports.

 

 

 

 

 

 

 

These pins also serve as an input (wake-up input) of external

 

 

 

 

INT20/

 

 

 

 

 

AN4,

 

interrupt 2 or as an 10-bit A/D converter analog input. The input of

 

 

 

 

P01/

 

external interrupt 2 is a hysteresis input.

 

 

 

 

 

 

 

 

 

 

 

 

INT21/

 

 

 

 

 

 

AN5

 

 

 

 

 

 

 

 

 

30, 31

 

32, 33

 

P02/

G

General-purpose CMOS I/O ports.

 

 

 

 

 

 

 

These pins also serve as an input (wake-up input) of external

 

 

 

 

INT22/

 

 

 

 

 

AN6,

 

interrupt 2 or as an 10-bit A/D converter analog input. The input of

 

 

 

 

P03/

 

external interrupt 2 is a hysteresis input.

 

 

 

 

 

 

 

 

 

 

 

 

INT23/

 

 

 

 

 

 

AN7

 

 

 

 

 

 

 

 

 

1 to 4

 

1 to 4

 

P04/

D

General-purpose CMOS I/O ports.

 

 

 

 

 

 

 

These pins also serve as an input (wake-up input) of external

 

 

 

 

INT24

 

 

 

 

 

to

 

interrupt 2. The input of external interrupt 2 is a hysteresis input.

 

 

 

 

P07/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INT27

 

 

 

 

 

 

 

 

 

19

 

20

 

P30/

B

General-purpose CMOS I/O ports.

 

 

 

 

UCK/

 

This pin also serves as the clock I/O pin for the UART or 8-bit

 

 

 

 

SCK

 

serial I/O. The resource is a hysteresis input.

 

 

 

 

 

 

 

18

 

19

 

P31/

E

General-purpose CMOS I/O ports.

 

 

 

 

UO/SO

 

This pin also serves as the data output pin for the UART or 8-bit

 

 

 

 

 

 

 

 

serial I/O.

 

 

 

 

 

 

 

 

 

12

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Fujitsu MB89202, F202RA manual Pin Functions Description 1/2, Pin No Circuit Function Name Type
Page 27 Page 29

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.
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