DLPU048E August 2016 – July 2024
The CRCZ_CHKSUM_SEL signal is used by the boot application during system power-up to determine whether the host will use an 8-bit CRC or 8-bit checksum to verify command transactions. The main application will also use this value during power-up to determine whether the diagnostic control interface will use an 8-bit CRC or 8-bit checksum.
| VALUE AT SYSTEM POWER-UP | SYSTEM ACTION |
|---|---|
| 0 | Host Control Interface uses CRC on all transactions Diagnostic Control Interface uses CRC on all transactions |
| 1 | Host Control Interface uses checksum on all transactions Diagnostic Control Interface uses checksum on all transactions |