Bit name Function, Tpe, Tir, Tie, 144 | Fujitsu MB89202, F202RA

CHAPTER 7 8-BIT PWM TIMER

Table 7.4-1 Explanation of the Functions of Each Bit in the PWM Control Register (CNTR)

	Bit name	Function

		This bit is used to select the interval timer operation (P/TX = 0) or PWM timer
	P/TX:	operation (P/TX = 1).
bit7	Bit to select the	Note:
	operation mode	Before writing into this bit, stop the counter operation (TPE = 0), disable an
		interrupt (TIE = 0), and clear the interrupt request flag bit (TIR = 0).

bit6	Unused bit	The value during a read is undetermined.
bit6	Unused bit	A write does not affect operations.
		A write does not affect operations.

		This bit is used to select the count clock of the interval timer functions or PWM
		timer functions.
bit5,	P1, P0:	One of three types of internal count clock or the output of the 8/16-bit capture
bit4	Bits to select the clock	timer or counter can be selected.
		Note:
		When the counter is operating (TPE = 1), do not switch P1 and P0.

	TPE:	This bit is used to start and stop the interval timer functions or PWM timer
	TPE:	functions.
bit3	Bit to enable the counter	functions.
bit3	Bit to enable the counter	To start the count operation, write "1" to this bit. When "0" is written to this bit,
	operation
	operation	the counter is cleared (setting 00H) and then stopped.
		the counter is cleared (setting 00H) and then stopped.

		While the internal timer functions are enabled:
		When the counter value matches the PWM compare register (COMR) value, "1" is
		set to this bit.
bit2	TIR:	When this bit and the bit to enable an interrupt request (TIE) are "1", an interrupt
bit2	Interrupt request flag bit	request to the CPU is output.
	Interrupt request flag bit	request to the CPU is output.
		While the PWM timer functions are enabled, an interrupt request does not occur.
		When this bit is written, it is cleared (setting "0"). Writing "1" does not affect this
		bit in any way.

		When this bit is "0", the P50/PWM pin is used as a general-purpose port (P50).
	OE:	When the bit is "1", it is used as a dedicated pin (PWM).
bit1	Bit to control the output	When the interval timer functions are enabled, the square wave is output to the
	pin	PWM pin. When the PWM timer functions are enabled, the PWM wave is output
		to the PWM pin.

	TIE:	This bit is used to enable and disable the output of an interrupt request to the CPU.
bit0	Bit to enable an interrupt	When this bit and the interrupt request flag bit (TIR) are both "1", an interrupt
	request	request is output.

144 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 Bit name Function, Tpe, Tir, Tie, 144

Models: F202RA MB89202

CHAPTER 7 8-BIT PWM TIMER

Bit name

Function

TPE:

TIR:

TIE:

144

F202RA, MB89202 specifications