12.4.1 A/D Control Register 1 ADC1 | Fujitsu MB89202, F202RA

CHAPTER 12 A/D CONVERTER

12.4.1A/D Control Register 1 (ADC1)

A/D control register 1 (ADC1) is used to set the enabling and disabling functions of the A/D converter, select an analog input, and check the status.

■A/D Control Register 1 (ADC1)

Figure 12.4-2 A/D Control Register 1 (ADC1)

Address bit7	bit6	bit5	bit4	bit3	bit2	bit1	bit0	Initial value
0030H	ANS2	ANS1	ANS0	ADI	ADMV	RESV0	AD	-0000000B

	R/W	R/W	R/W	R/W	R	R/W	R/W

	A/D conversion activation bit
AD	This bit is enabled only when software is activated
AD	(ADC2: EXT = 0).
	Always 0 for at reading.

0A/D conversion functions are not activated.

1A/D conversion functions are activated.

RESV0

Reserved bit

0Not changed. This does not affect others.

1Not changed. This does not affect others.

ADMV	Converting flag bit

0Not during conversion.

1During conversion.

Interrupt request flag bit

ADI

During read

0Conversion has not been completed.

1Conversion has been completed.

During write

This bit is cleared.

Not changed. This does not affect others.

	ANS2	ANS1	ANS0	Analog input channel selection bits
				AN0 pin (P40/AN0)
	0	0	0
0		0	1	AN1 pin (P41/AN1)
0		1	0	AN2 pin (P42/AN2)
0		1	1	AN3 pin (P43/AN3)
1		0	0
				AN4 pin (P00/INT20/AN4)

1		0	1	AN5 pin (P01/INT21/AN5)
1		1	0		/AN6)
				AN6 pin (P02/INT22
					/AN7)
1		1	1	AN7 pin (P03/INT23

R/W : Readable/Writable R : Read only

: Initial value

266

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.

Fujitsu MB89202, F202RA manual 12.4.1 A/D Control Register 1 ADC1, 2 A/D Control Register 1 ADC1

Models: F202RA MB89202