35.4 Signal Description

Table 35-1. Quad-SPI Signals
Signal Description Type
SCK Serial Clock Output
CS Chip Select Output
MOSI(DATA0) Data Output (Data Input Output 0) Output (Input/Output)
MISO(DATA1) Data Input (Data Input Output 1) Input (Input/Output)
DATA2 Data Input Output 2 Input/Output
DATA3 Data Input Output 3 Input/Output
Note: MOSI and MISO are used for single-bit SPI operation
Note: DATA0-DATA1 are used for Dual SPI operation
Note: DATA0-DATA3 are used for Quad SPI operation

Refer to the pinout table for details on the pin mapping for this peripheral. One signal can be mapped to one of several pins.