MC68HC708XL36 FREESCALE [Freescale Semiconductor, Inc], MC68HC708XL36 Datasheet - Page 222

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MC68HC708XL36

Manufacturer Part Number
MC68HC708XL36
Description
HCMOS Microcontroller Unit
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
SPI
Resetting the SPI
MC68HC708XL36
222
The error interrupt enable bit (ERRIE) enables both the MODF and
OVRF bits to generate a receiver/error CPU interrupt request.
The mode fault enable bit (MODFEN) can prevent the MODF flag from
being set so that only the OVRF bit is enabled by the ERRIE bit to
generate receiver/error CPU interrupt requests.
Any system reset completely resets the SPI. Partial resets occur
whenever the SPI enable bit (SPE) is low. Whenever SPE is low, the
following occurs:
DMAS
ERRIE
MODF
OVRF
Freescale Semiconductor, Inc.
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The SPTE flag is set.
Any transmission currently in progress is aborted.
The shift register is cleared.
Figure 12. SPI Interrupt Request Generation
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SPI
SPRIE
SPTE
SPTIE
SPRF
SPE
SPI TRANSMITTER
DMA SERVICE REQUEST
SPI TRANSMITTER
CPU INTERRUPT REQUEST
SPI RECEIVER
DMA SERVICE REQUEST
SPI RECEIVER/ERROR
CPU INTERRUPT REQUEST
MOTOROLA
22-spi_c

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