Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Freescale Semiconductor/MK61F15WS/SPI1/PUSHR_SLAVE#0x0
DSPI PUSH TX FIFO Register In Slave Mode
Transmit Data
no description available
https://github.com/cmsis-svd/cmsis-svd-data