Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 1MB LQFP

Functional overview STM32L475xx

56/204 DS10969 Rev 5

The Quad SPI interface supports:

• Three functional modes: indirect, status-polling, and memory-mapped

• SDR and DDR support

• Fully programmable opcode for both indirect and memory mapped mode

• Fully programmable frame format for both indirect and memory mapped mode

• Each of the 5 following phases can be configured independently (enable, length,

single/dual/quad communication)

– Instruction phase

– Address phase

– Alternate bytes phase

– Dummy cycles phase

– Data phase

• Integrated FIFO for reception and transmission

• 8, 16, and 32-bit data accesses are allowed

• DMA channel for indirect mode operations

• Programmable masking for external flash flag management

• Timeout management

• Interrupt generation on FIFO threshold, timeout, status match, operation complete, and

access error

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