Integrated in MCU domain one Flash Subsystem (MCU_FSS) provides access to external flash devices via Octal Serial Peripheral Interface (OSPI) and HyperBus interface along with encryption/decryption, authentication, and in-line ECC protection. MCU_FSS supports the following main features:
- Provides one OSPI or one HyperBus flash interfaces
- OSPI0/HyperBus interface supports:
- Execute in place (XIP) operation
- 32-byte Block Copy (BC) operation
- ECC and/or authentication with four configurable authentication regions and authentication on 32-byte blocks
- OSPI supports up to 4 devices
- OSPI supports single, dual, quad, or octal SPI devices
- HyperBus interface supports up to 2 devices
- The OSPI and HyperBus interface have independent power management for low power operations