135

Table 9-3. Embedded Device Control Register Summary

Addr.	Register Name
	USB Embedded Device
$0047	Control Register 2
	(DCR2)
	USB Embedded Device
$0048	Address Register
	(DADDR)
	USB Embedded Device
$0049	Interrupt Register 0
	(DIR0)
	USB Embedded Device
$004A	Interrupt Register 1
	(DIR1)
	USB Embedded Device
$004B	Control Register 0
	(DCR0)
	USB Embedded Device
$004C	Control Register 1
	(DCR1)
	USB Embedded Device
$004D	Status Register
	(DSR)

	Bit 7	6	5	4	3	2	1	Bit 0

Read:	0	0	0	0	ENABLE2	ENABLE1	DSTALL2	DSTALL1
Write:



Reset:	0	0	0	0	0	0	0	0

Read:	DEVEN	DADD6	DADD5	DADD4	DADD3	DADD2	DADD1	DADD0
Write:	DEVEN	DADD6	DADD5	DADD4	DADD3	DADD2	DADD1	DADD0
Write:

Reset:	0	0	0	0	0	0	0	0

Read:	TXD0F	RXD0F	0	0	TXD0IE	RXD0IE	0	0
Write:
							TXD0FR	RXD0FR
							TXD0FR	RXD0FR

Reset:	0	0	0	0	0	0	0	0

Read:	TXD1F	0	0	0	TXD1IE	0	0	0

Write:							TXD1FR
Write:							TXD1FR

Reset:	0	0	0	0	0	0	0	0

Read:	T0SEQ	DSTALL0	TX0E	RX0E	TP0SIZ3	TP0SIZ2	TP0SIZ1	TP0SIZ0
Write:	T0SEQ	DSTALL0	TX0E	RX0E	TP0SIZ3	TP0SIZ2	TP0SIZ1	TP0SIZ0
Write:

Reset:	0	0	0	0	0	0	0	0

Read:	T1SEQ	ENDADD	TX1E	0	TP1SIZ3	TP1SIZ2	TP1SIZ1	TP1SIZ0
Write:



Reset:	0	0	0	0	0	0	0	0

Read:	DRSEQ	DSETUP	DTX1ST	0	RP0SIZ3	RP0SIZ2	RP0SIZ1	RP0SIZ0
Write:
Write:				DTX1STR

Reset:	X	X	0	0	X	X	X	X
		= Unimplemented			X = Indeterminate
		= Unimplemented			X = Indeterminate

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

Freescale Semiconductor	135

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 Embedded Device Control Register Summary, 135

Models: MC68HC08KH12

Table 9-3. Embedded Device Control Register Summary

Addr.

Register Name

(DADDR)

(DSR)

MC68HC08KH12 specifications