26.2.2 Signal Description

Table 26-1. Signals in Host and Client Mode
SignalDescriptionPin Configuration
Host ModeClient Mode
MOSIHost Out Client InUser defined(1)Input
MISOHost In Client OutInputUser defined(1,2)
SCKSerial ClockUser defined(1)Input
SSClient SelectUser defined(1)Input
Note:
  1. If the pin data direction is configured as output, the pin level is controlled by the SPI.
  2. If the SPI is in Client mode and the MISO pin data direction is configured as output, the SS pin controls the MISO pin output in the following way:
    • If the SS pin is driven low, the MISO pin is controlled by the SPI
    • If the SS pin is driven high, the MISO pin is tri-stated
When the SPI module is enabled, the pin data direction for the signals marked with “Input” in Table 26-1 is overridden.