Addr.

$FE00 $FE01 $FE02 $FE03 $FE04 $FE05 $FE06 $FE07 $FE08 $FE09 $FE0A $FE0B $FE0C $FE0D

$FE0E

$FF8D

$FFFF

Name

 

Bit 7

6

5

4

3

 

2

1

Bit 0

Break Status Register

R:

R

R

R

R

R

 

R

SBSW

R

(BSR)

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset Status Register

R:

POR

PIN

COP

ILOP

ILAD

 

USB

0

0

(RSR)

W:

 

 

 

 

 

 

 

 

 

Reserved

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

Break Flag Control Register

R:

BCFE

R

R

R

R

 

R

R

R

(BFCR)

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interrupt Status Register 1 (INT1)

R:

IF6

IF5

IF4

IF3

IF2

 

IF1

0

0

W:

R

R

R

R

R

 

R

R

R

 

 

 

 

 

 

 

 

 

 

 

 

 

Interrupt Status Register 2 (INT2)

R:

0

0

0

IF11

IF10

 

IF9

IF8

IF7

 

 

 

 

 

 

 

 

 

 

W:

R

R

R

R

R

 

R

R

R

 

 

 

 

 

 

 

 

 

 

 

Reserved

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

Reserved

R:

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

Break Address Register High

R:

Bit 15

14

13

12

11

 

10

9

Bit 8

(BRKH)

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Break Address Register Low

R:

Bit 7

6

5

4

3

 

2

1

Bit 0

(BRKL)

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Break Status and Control Register

R:

BRKE

BRKA

0

0

0

 

0

0

0

(BRKSCR)

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

COP Control Register

R:

 

 

 

Low byte of reset vector

 

 

 

(COPCTL)

W:

 

 

Writing clears COP counter (any value)

 

 

 

 

 

 

 

 

 

 

 

 

 

= Unimplemented

R

= Reserved

Figure 2-2. Control, Status, and Data Registers (Continued)

Advance Information

MC68HC(7)08KH12 Rev. 1.1

 

 

42

Freescale Semiconductor

Page 42
Image 42
Freescale Semiconductor MC68HC08KH12 manual $FF8D $FFFF

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.