ECC on SPC560x microcontroller family

AN4276

8/21

DocID024408 Rev 2

2.3

ECSM module

A part of Error Correction Status Module is dedicated to collecting ECC information reported

by memories and underlying bus system. It provides set of registers storing extended

information about last ECC fault signaled by status register ESR.

ECSM module differentiates between RAM and Flash memories, where Code and Data

Flash memories are merged and signaled as one Flash ECC fault. Code analyzing from

which memory the fault comes has to use FEAR register storing the address and to bind it to

the correct Flash region.

Table 4. ECSM module register set

Register

Description

Register

Description

ECR

ECC Configuration

FEDR

Flash ECC Data

ESR

ECC Status

REAR

RAM ECC Address

EEGR

ECC Error Generation

RESR

RAM ECC Syndrome

FEAR

Flash ECC Address

REMR

RAM ECC Master

FEMR

Flash ECC Master Number

REAT

RAM ECC Attributes

FEAT

Flash ECC Attributes

REDR

RAM ECC Data