264

CHAPTER 12 A/D CONVERTER

■Block Diagram of the Pins Related to the A/D Converter

Figure 12.3-1 Block Diagram of P03/INT23/AN7 to P00/INT20/AN4 Pins

a bus

A/D converter	A/D converter enable bit
channel select	(only P00 to P03)
To the A/D
converter
analog input

PDR	To an external interrupt
PDR
		From disabling an
PDR read		external interrupt
PDR read		Stop mode (SPL = 1)
		Stop mode (SPL = 1)
		Pull-up
PDR read		resistor
(At read-modify-write)

Internal dat

Output

latch PDR write

DDR DDR write

PUL read

PUL

Pch

Nch

Stop mode (SPL = 1)

Pins

P00/INT20/AN4

P01/INT21/AN5

P02/INT22/AN6

P03/INT23/AN7

PUL write

SPL: Pin status setting bit of the standby control register (STBC)

Figure 12.3-2 Block Diagram of P43/AN3 to P40/AN0 Pins

A/D converter	A/D converter
channel select	enable bit

To the A/D converter analog input

Internal data bus

PDR

PDR read

(At read-modify-write)

Output latch

PDR write

DDR

DDR write DDR read OUT read

OUT OUT write

Stop mode (SPL = 1)

Pch

Nch

Stop mode (SPL = 1)

Pins

P40/AN0

P41/AN1

P42/AN2 P43/AN3

264 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 Block Diagram of the Pins Related to the A/D Converter, 264

Models: F202RA MB89202

CHAPTER 12 A/D CONVERTER

■Block Diagram of the Pins Related to the A/D Converter

Figure 12.3-1 Block Diagram of P03/INT23/AN7 to P00/INT20/AN4 Pins

Internal dat

Figure 12.3-2 Block Diagram of P43/AN3 to P40/AN0 Pins

PDR

F202RA, MB89202 specifications