Addr.

$0040 $0041 $0042 $0043 $0044 $0045 $0046 $0047 $0048 $0049 $004A $004B $004C $004D $004E $004F

Name

 

Bit 7

6

5

4

3

2

1

Bit 0

Port F Keyboard Status and Control

R:

0

0

0

0

KEYFF

0

IMASKF

MODEF

Register (KBFSCR)

W:

 

 

 

 

 

ACKF

 

 

 

 

 

 

 

Port F Keyboard Interrupt Enable

R:

KBFIE7

KBFIE6

KBFIE5

KBFIE4

KBFIE3

KBFIE2

KBFIE1

KBFIE0

Register (KBFIER)

W:

 

 

 

 

 

 

 

 

 

 

Port F Pull-up Enable Register

R:

PFPE7

PFPE6

PFPE5

PFPE4

PFPE3

PFPE2

PFPE1

PFPE0

(PFPER)

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

USB Embedded Device Control

R:

0

0

0

0

ENABLE2

ENABLE1

DSTALL2

DSTALL1

Register 2 (DCR2)

W:

 

 

 

 

 

 

 

 

 

 

 

 

USB Embedded Device Address

R:

DEVEN

DADD6

DADD5

DADD4

DADD3

DADD2

DADD1

DADD0

Register (DADDR)

W:

 

 

 

 

 

 

 

 

 

 

USB Embedded Device Interrupt

R:

TXD0F

RXD0F

0

0

TXD0IE

RXD0IE

0

0

Register 0 (DIR0)

W:

 

 

 

 

TXD0FR

RXD0FR

 

 

 

 

 

 

USB Embedded Device Interrupt

R:

TXD1F

0

0

0

TXD1IE

0

0

0

Register 1 (DIR1)

W:

 

 

 

 

 

TXD1FR

 

 

 

 

 

 

 

 

USB Embedded Device Control

R:

T0SEQ

DSTALL0

TX0E

RX0E

TP0SIZ3

TP0SIZ2

TP0SIZ1

TP0SIZ0

Register 0 (DCR0)

W:

 

 

 

 

 

 

 

 

 

 

USB Embedded Device Control

R:

T1SEQ

ENDADD

TX1E

0

TP1SIZ3

TP1SIZ2

TP1SIZ1

TP1SIZ0

Register 1 (DCR1)

W:

 

USB Embedded Device Status

R:

DRSEQ

DSETUP

DTX1ST

0

RP0SIZ3

RP0SIZ2

RP0SIZ1

RP0SIZ0

Register (DSR)

W:

 

 

 

DTX1STR

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unimplemented

R:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

= Unimplemented

R

= Reserved

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

Advance Information

MC68HC(7)08KH12 — Rev. 1.1

 

 

40

Freescale Semiconductor

Page 39 Page 41
Page 40
Image 40
Freescale Semiconductor MC68HC08KH12 manual Keyff
Page 39 Page 41

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.
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