Freescale Semiconductor, Inc.

 

 

Freescale Semiconductor, Inc.

 

 

Block Guide — S12EETX4KV0 V00.04

 

 

Table 4-1 EEPROM Command Description

 

 

 

 

ECMDB

Command

Function on EEPROM Memory

 

 

 

 

 

$20

Program

Program a word (two bytes) in the EEPROM block.

 

 

 

 

 

$40

Sector

Erase all four memory bytes in a sector of the EEPROM block.

 

Erase

 

 

 

 

 

 

 

 

 

Mass

Erase all memory bytes in the EEPROM block.

 

$41

A mass erase of the full EEPROM block is only possible when EPOPEN and EPDIS bits

 

Erase

 

 

in the EPROT register are set prior to launching the command.

 

 

 

 

 

 

 

 

 

 

Abort the sector erase operation.

 

$47

Sector Erase

The sector erase operation will terminate according to a set procedure. The EEPROM

 

Abort

sector should not be considered erased if the ACCERR flag is set upon command

 

 

 

 

 

completion.

 

 

 

 

 

$60

Sector

Erase all four memory bytes in a sector of the EEPROM block and reprogram the

 

Modify

addressed word.

 

 

 

 

 

 

 

NOTE:

The user should not program an EEPROM word without first erasing the sector in

 

which that word resides.

4.1.3.1 Erase Verify Command

The erase verify operation will verify that the EEPROM memory is erased.

An example flow to execute the erase verify operation is shown in Figure 4-2. The erase verify command write sequence is as follows:

1.Write to an EEPROM address to start the command write sequence for the erase verify command. The address and data written will be ignored.

2.Write the erase verify command, $05, to the ECMD register.

3.Clear the CBEIF flag in the ESTAT register by writing a “1” to CBEIF to launch the erase verify command.

After launching the erase verify command, the CCIF flag in the ESTAT register will set after the operation has completed unless a new command write sequence has been buffered. The number of bus cycles required to execute the erase verify operation is equal to the number of words in the EEPROM memory plus 14 bus cycles as measured from the time the CBEIF flag is cleared until the CCIF flag is set. Upon completion of the erase verify operation, the BLANK flag in the ESTAT register will be set if all addresses in the EEPROM memory are verified to be erased. If any address in the EEPROM memory is not erased, the erase verify operation will terminate and the BLANK flag in the ESTAT register will remain clear.

29

For More Information On This Product,

Go to: www.freescale.com

Page 28 Page 30
Page 29
Image 29
Freescale Semiconductor EETX4K, Block Guide warranty Erase Verify Command, Sector
Page 28 Page 30

Block Guide, EETX4K specifications

Freescale Semiconductor, a global leader in embedded processing solutions, introduced the EETX4K, a revolutionary embedded processor designed to meet the growing demands of industrial applications. The EETX4K processor is specifically engineered for high-performance, low-power systems, offering an ideal balance between performance and power consumption.

One of the main features of the EETX4K is its high level of integration. This processor houses a powerful ARM Cortex-A9 core, which allows for efficient processing capabilities while maintaining a compact architecture. This ensures that the EETX4K can operate seamlessly in various applications, including automotive systems, industrial automation, and consumer electronics.

A standout characteristic of the EETX4K is its extensive connectivity options. It supports a range of communication interfaces, such as Ethernet, SPI, I2C, UART, and USB, enabling flexible integration into various networked environments. The processor is equipped with hardware Ethernet support for Real-Time Ethernet protocols, ensuring reliable and deterministic data transfer, which is crucial for time-sensitive applications.

In addition to its connectivity features, the EETX4K supports advanced graphical processing capabilities. With integrated 3D Graphics and Video Processing Units, it can handle demanding multimedia applications, making it suitable for user interfaces in industrial machines and smart devices. This makes the EETX4K an optimal choice for applications requiring rich graphics and advanced visualization.

Another important technological aspect of the EETX4K is its robust security features. It is designed with security in mind, incorporating hardware support for secure boot and secure data storage. This ensures that sensitive information is protected against potential threats and vulnerabilities, a critical requirement in today's interconnected world.

Furthermore, the EETX4K is optimized for energy efficiency, allowing for extended operational periods in battery-powered or energy-constrained environments. With its low thermal design power (TDP), it minimizes heat generation, ensuring that systems remain reliable and efficient under various operating conditions.

In summary, the Freescale Semiconductor EETX4K is a versatile embedded processor that combines high performance, comprehensive connectivity, advanced graphics capabilities, robust security features, and energy efficiency. These attributes make it an ideal solution for a wide range of applications, paving the way for innovation across multiple industries.
Top Page Image Contents