3.4.11 Secure Element - CryptoAuthentication™

The ECC608B is a member of the Microchip CryptoAuthentication family of high-security cryptographic devices which combine a world-class hardware-based key storage with hardware cryptographic accelerators to implement various authentication and encryption protocols.

The ECC608B includes an EEPROM array which can be used for storage of up to 16 keys, certificates, miscellaneous read/write, read-only or secret data, consumption logging, and security configurations. Access to the various memory sections can be restricted in a variety of ways and the configuration can be locked to prevent changes.

For more details about ECC608B, refer to the product web page.

Table 3-41. ECC608B PIO Signal Descriptions
PIO MPU Signal Name Device Signal Name Shared With Signal Description
PC14 FLEXCOM8_IO0_PC14 ECC608_TWD MIPI CSI camera TWI data
PC13 FLEXCOM8_IO1_PC13 ECC608_TWCK MIPI CSI camera TWI clock

ATECC608B-SSHDA is placed on the same TWI bus as the MIPI CSI camera, as described below.

Figure 3-51. ECC608 Interface Schematic
Table 3-42. ECC608B TWI Address
Device 7-bit Client Address Full Address with RD/WR#
ECC608B TWI Read 1100_000 0xC1
ECC608B TWI Write 0xC0