Pins of 8-Bit Serial I/O, P32/UI/SI pin

CHAPTER 14 8-BIT SERIAL I/O

14.3Pins of 8-Bit Serial I/O

8-bit serial I/O pins include P32/UI/SI, P31/UO/SO, and P30/UCK/SCK pins.

■Pins of 8-bit Serial I/O

●P32/UI/SI pin

The P32/UI/SI pin functions as the general-purpose I/O port (P32). It also functions as the serial data input pin (SI) of the 8-bit serial I/O or as the serial data input pin (UI) of the UART.

When using the P32/SI pin as the SI pin, set the P32/UI/SI pin to "input port" with the port direction register (DDR3: bit2 = 0).

●P31/UO/SO pin

The P31/UO/SO pin functions as the general-purpose I/O port (P31). It also functions as the serial data output pin (SO) function of the 8-bit serial I/O or as the serial data output pin (UO) function of the UART.

When the serial data output is allowed (SMR: SOE = 1), the P31/UO/SO pin automatically becomes an output pin irrespective of the values in the port direction register (bit1 of DDR3) and functions as the SO pin.

●P30/UCK/SCK pin

The P30/UCK/SCK pin functions as the general-purpose I/O port (P30). It also functions as the shift clock I/O pin (SCK) of the 8-bit serial I/O or as the shift clock I/O pin (UCK) of the UART.

When using the P30/UCK/SCK pin as the shift clock input pin

When using the SCK pin as the shift clock input pin, set it to "input port" with the port direction register (DDR3: bit3 = 0) and prohibit shift clock output (SMR: SCKE = 0). In this case, be sure to select the external shift clock (SMR: CKS1, CKS0 = 11B).

When using the P30/UCK/SCK pin as the shift clock output pin

When the shift clock output is allowed (SMR: SCKE = 1), the P30/UCK/SCK pin automatically becomes

an output pin irrespective of the values in the port direction register (DDR3: bit0) and functions as the

SCK output pin. In this case, be sure to select an internal shift clock (when SMR: CKS1, CKS0 are not 11B).

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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.

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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.

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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, MB89202 Pins of 8-Bit Serial I/O, P32/UI/SI pin, P31/UO/SO pin, P30/UCK/SCK pin

Models: F202RA MB89202