SPNS254A June 2022 – March 2024 TMS570LC4357-SEP
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
Accesses to some peripheral RAMs are protected by either odd/even parity checking or ECC checking. During a read access the parity or ECC is calculated based on the data read from the peripheral RAM and compared with the good parity or ECC value stored in the peripheral RAM for that peripheral. If any word fails the parity or ECC check, the module generates a ECC/parity error signal that is mapped to the Error Signaling Module. The module also captures the peripheral RAM address that caused the parity error.
The parity or ECC protection for peripheral RAMs is not enabled by default and must be enabled by the application. Each individual peripheral contains control registers to enable the parity or ECC protection for accesses to its RAM.
For peripherals with parity protection the CPU read access gets the actual data from the peripheral. The application can choose to generate an interrupt whenever a peripheral RAM parity error is detected.