35.4 Signal Description

Table 35-1. Quad-SPI Signals
SignalDescriptionType
SCKSerial ClockOutput
CSChip SelectOutput
MOSI(DATA0)Data Output (Data Input Output 0)Output (Input/Output)
MISO(DATA1)Data Input (Data Input Output 1)Input (Input/Output)
DATA2Data Input Output 2Input/Output
DATA3Data Input Output 3Input/Output
Note:
  1. MOSI and MISO are used for single-bit SPI operation.
  2. DATA0-DATA1 are used for Dual SPI operation.
  3. DATA0-DATA3 are used for Quad SPI operation.

For more details on the pin mapping of the QSPI peripheral, see I/O Ports and Peripheral Pin Select (PPS) from Related Links.