9.5.9 USB Embedded Device Endpoint 1/2 Data Registers (DE1D0-DE1D7)

Address: $0028

 

 

 

 

 

 

 

 

Bit 7

6

5

4

3

2

1

Bit 0

Read:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Write:

DE1T07

DE1T06

DE1T05

DE1T04

DE1T03

DE1T02

DE1T01

DE1T00

 

 

 

 

 

 

 

 

 

Reset:

X

X

X

X

X

X

X

X

 

 

 

 

 

 

 

Address: $002F

 

 

 

 

 

 

 

Read:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Write:

DE1T77

DE1T76

DE1T75

DE1T74

DE1T73

DE1T72

DE1T71

DE1T70

 

 

 

 

 

 

 

 

 

Reset:

X

X

X

X

X

X

X

X

 

 

= Unimplemented

 

X = Indeterminate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 9-20. USB Embedded Device Endpoint 0 Data Register

(UE0D0-UE0D7)

DE1TD7-DE1TD0 — Embedded Device Endpoint 1/ Endpoint 2

Transmit Data Buffer

These write only buffers are loaded by software with data to be sent on the USB bus on the next IN token directed at Endpoint 1 or Endpoint 2 of the embedded device. These buffers are shared by embedded device Endpoints 1 and 2 and depend on proper configuration of the ENDADD bit.

Advance Information

MC68HC(7)08KH12 Rev. 1.1

 

 

148

Freescale Semiconductor

Page 148
Image 148
Freescale Semiconductor MC68HC08KH12 manual USB Embedded Device Endpoint 0 Data Register UE0D0-UE0D7, 148

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.