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Section 16 Renesas Serial Peripheral Interface
Page 832 of 2108 R01UH0134EJ0400 Rev. 4.00
Sep 24, 2014
SH7262 Group, SH7264 Group
16.4.7 Initialization
If 0 is written to the SPE bit in the control register (SPCR) or this module clears the SPE bit to 0
because of the detection of a mode fault error, this module disables the module function, and
initializes a part of the module function. When a power-on reset is generated, this module
initializes all of the module function. An explanation of initialization by the clearing of the SPE bit
follows.
(1) Initialization by Clearing SPE Bit
When the SPE bit in SPCR is cleared, this module performs the following initialization:
Suspending any serial transfer that is being executed
Stopping the driving of output signals (Hi-Z) in slave mode
Initializing the internal state
Initializing the TEND bit in SPSR
Initialization by the clearing of the SPE bit does not initialize the control bits of this module. For
this reason, this module can be started in the same transfer mode as prior to the initialization if the
SPE bit is re-set to 1.