19.9 Configuring the Scanner
The scanner module may be used in conjunction with the CRC module to perform a CRC
calculation over a range of program memory or Data EEPROM addresses. To set up the
scanner to work with the CRC, perform the following steps:
- Set up the CRC module (see the “Configuring the CRC Module” section) and enable the scanner module by setting the EN bit in the SCANCON0 register.
- Choose the scanning mode by configuring the MD bits.
- If Trigger mode is selected for scanner operation, select the trigger source using the TSEL bits.
- Set the SCANLADR and SCANHADR registers with the beginning and ending locations in memory that are to be scanned.
- Both EN and GO bits in the CRCCON0 register must be enabled to use the scanner. Setting the SGO bit will start the scanner operation.