Explanation on the Codes Representing Instructions

■Explanation on the Codes Representing Instructions

Table B-1describes the codes used to explain the instruction codes in Appendix B.

Table B-1 Explanation on Codes on Instructions’ List

	Code	Meaning

	dir	Direct address (8 bits)

	off	Offset (8 bits)

	ext	Extended address (16 bits)

	#vct	Vector table number (3 bits)

	#d8	Immediate data (8 bits)

	#d16	Immediate data (16 bits)

	dir:b	Bit direct address (8:3 bits)

	rel	Branch relative address (8 bits)

	@	Register indirect (Example: @A, @IX, and @EP)

	A	Accumulator (8 bits or 16 bits, determined on basis of instruction to be used)

	AH	Higher 8 bits of the accumulator (8 bits)

	AL	Lower 8 bits of the accumulator (8 bits)

	T	Temporary accumulator
	T	(8 bits or 16 bits, determined on basis of instruction to be used)


	TH	Higher 8 bits of the temporary accumulator (8 bits)

	TL	Lower 8 bits of the temporary accumulator (8 bits)

	IX	Index register (16 bits)

	EP	Extra pointer (16 bits)

	PC	Program counter (16 bits)

	SP	Stack pointer (16 bits)

	PS	Program status (16 bits)

	dr	Either accumulator or index register (16 bits)

	CCR	Condition code register (8 bits)

	RP	Register bank pointer (5 bits)

	Ri	General-purpose register (8 bits, i = 0 to 7)

	X	Indicates that X itself is the immediate data.
	X	(8 bits or 16 bits, determined on basis of instruction to be used)


	(X)	Indicates that the contents of X is the accessing subject.
	(X)	(8 bits or 16 bits, determined on basis of instruction to be used)


	((X))	Indicates that the address specified in X is the accessing subject.
	((X))	(8 bits or 16 bits, determined on basis of instruction to be used)

381 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 F202RA manual Explanation on the Codes Representing Instructions, Code Meaning, Ccr, 381

Models: F202RA MB89202

■Explanation on the Codes Representing Instructions

Table B-1 Explanation on Codes on Instructions’ List

Code

Meaning

CCR

381

F202RA, MB89202 specifications