SAK-XC2765X-72F80LAA View Datasheet(PDF) - Infineon Technologies

Part Name

Description

Manufacturer

SAK-XC2765X-72F80LAA

16/32-Bit Single-Chip Microcontroller with 32-Bit Performance XC2000 Family / Base Line

Infineon Technologies 

XC27x5X Derivatives

XC2000 Family / Base Line

Detailed Errata Description

Workaround

The usable conditions also depend on the application system and can only be

defined for a specific use case.

ECC_X.002 Incorrect ECC Error Indication for DPRAM

Under certain conditions, the ECC error flag for the dual port memory (DPRAM)

may indicate an error when none exists.

Conditions under which ECC error is incorrectly indicated:

• ECC memory protection has been selected for DPRAM

(SCU_MCHKCON.SELDP = 0).

• The ECC check is enabled for DPRAM (SCU_ECCCON.DPEN = 1).

• A concurrent read and write access is made to the same byte or word in the

DPRAM (possible due to instruction pipeline).

Under the above conditions, an ECC error may be indicated for DPRAM (flag

SCU_ECCSTAT.DP = 1), although there is no error in DPRAM.

It should be noted that despite the incorrect ECC error indication, the data are

delivered error free, and the ECC logic still functions correctly (correcting data

single bit errors, if present).

There is no data corruption in this case. The ECC bits that were written are

generated correctly, as well as check and correction is not affected for that was

read.

This problem is limited to the DPRAM. All other SRAM memories cannot

perform concurrent read and write accesses, and therefore cannot have this

issue.

Workaround

Use parity protection for DPRAM (SCU_MCHKCON.SELDP = 1).

Single-bit errors will be correctly indicated by parity logic, but will not be

corrected.

Errata Sheet

28

V1.5, 2013-02

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