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SOFIE — Start Of Fr ame Interrupt Enable

This read/write bit enables the Start Of Frame to generate a USB interrupt when the SOFF bit becomes set. Reset clears this bit.

1 = USB interrupt enabled for Start Of Frame

0 = USB interrupt disabled for Start Of Frame

EOF2IE — The Second End of Fr ame Point Interrupt Enable

This read/write bit enables the Second End Of Frame to generate a USB interrupt when the EOF2F bit becomes set. Reset clears this bit. 1 = USB interrupt enabled for the Second End Of Frame Point

0 = USB interrupt disabled for the Second End Of Frame Point

EOPIE — End of Packet De tect Interrupt Enable

This read/write bit enables the USB to generate a interrupt request when the EOPF bit becomes set. Reset clears the bit.

1 = USB interrupt enabled for End-of-Packet sequence detection 0 = USB interrupt disabled for End-of-Packet sequence detection

TRANIE — Bus Signal Transitio n Detect Interrupt Enable

This read/write bit enables the Signal Transition to generate a USB interrupt when the TRANF bit becomes set. Reset clears this bit.

1 = USB interrupt enabled for Bus Signal Transition

0 = USB interrupt disabled for Bus Signal Transition

9.4.4 USB SIE Timing Status Register (SIETSR)

Address:	$0057
	Bit 7	6	5	4	3	2	1	Bit 0

Read:	RSTF	0	LOCKF	0	0	0	0	0
Write:
Write:		RSTFR		LOCKFR	SOFFR	EOF2FR	EOPFR	TRANFR

Reset:	0**	0	0	0	0	0	0	0
		= Unimplemented			0** = Reset by POR only
		= Unimplemented			0** = Reset by POR only

Figure 9-5. USB SIE Timing Status Register (SIETSR)

MC68HC(7)08KH12 — Rev. 1.1	Advance Information

Freescale Semiconductor	125

MC68HC08KH12 specifications

The Freescale Semiconductor MC68HC08KH12 is a versatile microcontroller that has gained popularity in various embedded systems applications. Part of the HC08 family, this microcontroller combines a robust architecture with comprehensive on-chip features, making it suitable for a wide range of applications ranging from industrial control to consumer electronics.

One of the main features of the MC68HC08KH12 is its 8-bit architecture, which provides an optimal balance between performance and power efficiency. It operates at clock speeds of up to 2 MHz, allowing for efficient execution of instructions while maintaining low power consumption. The microcontroller is designed to operate over a voltage range of 2.7 to 5.5 volts, making it adaptable to various system requirements.

The MC68HC08KH12 is equipped with 1 Kbyte of RAM and 12 Kbytes of ROM, which allows for substantial program and data storage. The on-chip memory helps reduce the need for external components, simplifying the design of embedded systems and enhancing reliability. With a wide range of I/O options, including 26 general-purpose I/O pins, the microcontroller provides flexibility in interfacing with sensors, actuators, and other devices.

In terms of technologies, the MC68HC08KH12 features an advanced instruction set that enhances programming efficiency. It supports basic arithmetic operations, bit manipulation, and control transfer instructions, making it suitable for a variety of computational tasks. The integrated timers, analog-to-digital converters, and serial communication interfaces, including UART, provide the necessary tools for real-time control and data exchange with peripheral devices.

Another characteristic of the MC68HC08KH12 is its low power mode capabilities, which allow it to enter a sleep state during periods of inactivity. This feature is essential in battery-powered applications, where minimizing power consumption is crucial for extending operational life.

Overall, the Freescale Semiconductor MC68HC08KH12 stands out as a reliable microcontroller that combines performance, flexibility, and power efficiency. Its extensive features and technologies enable engineers to design robust embedded systems that meet the demands of modern applications. As a result, the MC68HC08KH12 remains a valuable choice for developers seeking a highly functional yet cost-effective microcontroller solution.

Freescale Semiconductor MC68HC08KH12 manual USB SIE Timing Status Register Sietsr, 125

Models: MC68HC08KH12

Figure 9-5. USB SIE Timing Status Register (SIETSR)

MC68HC08KH12 specifications