Master Mode; Slave Mode - NXP Semiconductors freescale KV4 Series Reference Manual

• Master mode

• Slave mode

• Module Disable mode
• MCU-specific modes:
• External Stop mode
• Debug mode
The module enters module-specific modes when the host writes a module register. The
MCU-specific modes are controlled by signals external to the module. The MCU-specific
modes are modes that an MCU may enter in parallel to the block-specific modes.
44.2.4.1 Master Mode
Master mode allows the module to initiate and control serial communication. In this
mode, these signals are controlled by the module and configured as outputs:
• SCK
• SOUT
• PCS[x]
44.2.4.2 Slave Mode
Slave mode allows the module to communicate with SPI bus masters. In this mode, the
module responds to externally controlled serial transfers. The SCK signal and the
PCS[0]/SS signals are configured as inputs and driven by an SPI bus master.
44.2.4.3 Module Disable Mode
The Module Disable mode can be used for MCU power management. The clock to the
non-memory mapped logic in the module can be stopped while in the Module Disable
mode.
Freescale Semiconductor, Inc.
KV4x Reference Manual, Rev. 2, 02/2015
Preliminary
Chapter 44 Serial Peripheral Interface (SPI)
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