AN2109 Freescale Semiconductor / Motorola, AN2109 Datasheet - Page 51

• Manufacturer Part Number: AN2109
• Description: MPC555 Interrupts
• Manufacturer: Freescale Semiconductor / Motorola

Source
HALTA
MODF
QTHF
QBHF
QTHE
QBHE
In total, there are 125 separate interrupt sources with 16 individual levels presented by the USIU mod-
ule. There are 32 possible by the UIMB3 module.
SPIF
TCI1
TCI2
ILI1
ILI2
RI1
RI2
TI1
TI2
QDSCI_IL[ILSCI1]
QSPI_IL[ILQSPI]
Level Setting
Freescale Semiconductor, Inc.
For More Information On This Product,
Table 27 QSMCM Interrupt Sources
Rev. 0, 26 July 2001
QSCI1CR[QTHFI]
QSCI1CR[QBHFI]
QSCI1CR[QTHEI]
QSCI1CR[QBHEI]
MPC555 Interrupts
Enable Control
SPCR2[SPIFIE]
SCC1R1[TCIE]
SCC2R1[TCIE]
SPCR3[HMIE]
SPCR3[HMIE]
SCC1R1[ILIE]
SCC2R1[ILIE]
SCC1R1[RIE]
SCC2R1[RIE]
SCC1R1[TIE]
SCC2R1[TIE]
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Status Decoding
QSCI1SR[QBHF]
QSCI1SR[QTHE]
QSCI1SR[QBHE]
QSCI1SR[QTHF]
SC1SR[TDRE]
SC1SR[RDRF]
SC2SR[TDRE]
SC2SR[RDRF]
SPSR[HALTA]
SPSR[MODF]
SC1SR[IDLE]
SC2SR[IDLE]
SPSR[SPIF]
SC1SR[TC]
SC2SR[TC]
SPI has reached the end of
queue marker
SPI mode fault flag due to SS
being asserted by external
device when in master mode.
Halt acknowledge flag in
response to halt bit being set for
the SPI function.
Transmit data register is empty
interrupt. Signal that more data
can be setup to be sent.
Transmit complete interrupt
(when the final serial bit is shifted
out)
Receive data register full
interrupt. Thus data ready to be
read, receive errors are also set
at this point but do not cause an
interrupt
Idle line (short or long) is
detected
Transmit data register is empty
interrupt. Signal that more data
can be setup to be sent.
Transmit complete interrupt
(when the final serial bit is shifted
out)
Receive data register full
interrupt. Thus data ready to be
read, receive errors are also set
at this point but do not cause an
interrupt
Idle line (short or long) is
detected
SCI1 Receive queue top-half full
SCI1 Receive queue bottom-half
full
SCI1 Transmitter queue top-half
is empty
SCI1 Transmitter queue bottom-
half is empty
Function Notes
MOTOROLA
51