Freescale Semiconductor EETX4K, Block Guide warranty Ecmd Eeprom Command Register

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Freescale Semiconductor, Inc.

Freescale Semiconductor, Inc.

Block Guide — S12EETX4KV0 V00.04

The CCIF flag indicates that there are no more commands pending. The CCIF flag is cleared when CBEIF is clear and sets automatically upon completion of all active and pending commands. The CCIF flag does not set when an active commands completes and a pending command is fetched from the command buffer. Writing to the CCIF flag has no effect on CCIF. The CCIF flag is used together with the CCIE bit in the ECNFG register to generate an interrupt request (see Figure 4-8).

1 = All commands are completed.

0 = Command in progress.

PVIOL — Protection Violation Flag.

The PVIOL flag indicates an attempt was made to program or erase an address in a protected area of the EEPROM memory during a command write sequence. The PVIOL flag is cleared by writing a “1” to PVIOL. Writing a “0” to the PVIOL flag has no effect on PVIOL. While PVIOL is set, it is not possible to launch a command or start a command write sequence.

1 = A protection violation has occurred.

0 = No failure.

ACCERR — Access Error Flag.

The ACCERR flag indicates an illegal access has occurred to the EEPROM memory caused by either a violation of the command write sequence (see section 4.1.2), issuing an illegal EEPROM command (see Table 3-4), launching the sector erase abort command terminating a sector erase operation early (see section 4.1.3.5) or the execution of a CPU STOP instruction while a command is executing (CCIF=0). The ACCERR flag is cleared by writing a “1” to ACCERR. Writing a “0” to the ACCERR flag has no effect on ACCERR. While ACCERR is set, it is not possible to launch a command or start a command write sequence. If ACCERR is set by an erase verify operation, any buffered command will not launch.

1 = Access error has occurred.

0 = No access error detected.

BLANK — Flag indicating the erase verify operation status.

When the CCIF flag is set after completion of an erase verify command, the BLANK flag indicates the result of the erase verify operation. The BLANK flag is cleared by the EEPROM module when CBEIF is cleared as part of a new valid command write sequence. Writing to the BLANK flag has no effect on BLANK.

1 = EEPROM block verified as erased.

0 = EEPROM block verified as not erased.

3.3.7 ECMD — EEPROM Command Register

The ECMD register is the EEPROM command register.

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Contents Original Release Date 7 JUL Revised 30 OCT Motorola, Inc Freescale Semiconductor, IncRevision History Table of Contents Freescale Semiconductor, Inc List of Figures Freescale Semiconductor, Inc List of Tables Freescale Semiconductor, Inc Freescale Semiconductor, Inc Freescale Semiconductor, Inc Introduction FeaturesOverview Modes of OperationInterface Block DiagramClock DividerExternal Signal Description Memory Map and Registers Module Memory MapEeprom Configuration Field Eeprom Memory Map Eeprom Register Map Address Register Name Normal Mode Offset AccessEclkdiv Eeprom Clock Divider Register Register DescriptionsRESERVED2 Ecnfg Eeprom Configuration RegisterEeprom Protection Register Eprot Eprot Eeprom Protection RegisterEeprom Protection Address Range Estat Eeprom Status RegisterEcmd Eeprom Command Register Valid Eeprom Command List Eeprom Command Register EcmdEdata Eeprom Data Registers Eaddr Eeprom Address Registers13 Eeprom Data Low Register Edatalo Eeprom Command Operations Functional DescriptionWriting the Eclkdiv Register 200 -182 ⁄ 200 × 100 = 9% Determination Procedure for PRDIV8 and Ediv Bits Command Write Sequence Eeprom CommandsEeprom Command Description Sector Erase Verify CommandExample Erase Verify Command Flow Program Command Freescale Semiconductor, Inc Example Program Command Flow Sector Erase Command Freescale Semiconductor, Inc Example Sector Erase Command Flow Mass Erase Command Example Mass Erase Command Flow Sector Erase Abort Command Freescale Semiconductor, Inc Ccif Illegal Eeprom Operations Example Sector Modify Command Flow3.5 Stop Mode Wait ModeBackground Debug Mode Unsecuring the MCU in Special Single Chip Mode via the BDMEeprom Reset Sequence ResetsReset While Eeprom Command Active InterruptsEeprom Interrupt Implementation Index Freescale Semiconductor, Inc Block Guide End Sheet Final Pages

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.

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