SPIx_S = 0x00(%00000000)
Bit 5 SPTEF = 0 Flag is set when transmit data buffer is empty
Bit 4 MODF = 0 Mode fault flag for master mode
Bit 3:0 = 0 Reserved
SPIx_M = 0xXX
Holds bits 0–7 of the hardware match buffer.
SPIx_D = 0xxx
Holds bits 0–7 of the data to be transmitted by the transmit buffer and received by the receive buffer.
Chapter 37 Serial Peripheral Interface (SPI)
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 685
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