MC9S12HY64 Datasheet, PDF (484/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Serial Peripheral Interface (S12SPIV5)
13.4.7.5.2 SPIF
SPIF occurs when new data has been received and copied to the SPI data register. After SPIF is set, it does
not clear until it is serviced. SPIF has an automatic clearing process, which is described in
Section 13.3.2.4, “SPI Status Register (SPISR)”.
13.4.7.5.3 SPTEF
SPTEF occurs when the SPI data register is ready to accept new data. After SPTEF is set, it does not clear
until it is serviced. SPTEF has an automatic clearing process, which is described in Section 13.3.2.4, “SPI
Status Register (SPISR)”.
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
484
Freescale Semiconductor