NXP Semiconductors PXN2020, Reference Manual, Page: 639 / 1376

FlexRay Communication Controller (FlexRAY)
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 26-25
26.5.2.12 Protocol Interrupt Flag Register 1 (PIFR1)
The register holds one set of the protocol-related individual interrupt flags.
Base + 0x001A Write: Normal Mode
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R EMC
_IF
IPC
_IF
PECF
_IF
PSC
_IF
SSI3
_IF
SSI2
_IF
SSI1
_IF
SSI0
_IF
0 0
EVT
_IF
ODT
_IF
0 0 0 0
W w1c w1c w1c w1c w1c w1c w1c w1c w1c w1c
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 26-12. Protocol Interrupt Flag Register 1 (PIFR1)
Table 26-18. PIFR1 Field Descriptions
Field Description
EMC_IF Error Mode Changed Interrupt Flag — This flag is set when the value of the ERRMODE bit field in the Protocol
Status Register 0 (PSR0) is changed by the controller.
0 No such event.
1 ERRMODE field changed.
IPC_IF Illegal Protocol Control Command Interrupt Flag — This flag is set when the PE tries to execute a protocol
control command, which was issued via the POCCMD field of the
Protocol Operation Control Register (POCR) ,
and detects that this protocol control command is not allowed in the current protocol state. In this case the
command is not executed. For more details, see
Section 26.7.4, Protocol Control Command Execution.
0 No such event.
1 Illegal protocol control command detected.
PECF_IF Protocol Engine Communication Failure Interrupt Flag — This flag is set if the controller has detected a
communication failure between the protocol engine and the controller host interface
0 No such event.
1 Protocol Engine Communication Failure detected.
PSC_IF Protocol State Changed Interrupt Flag — This flag is set when the protocol state in the PROTSTATE field in
the
Protocol Status Register 0 (PSR0) has changed.
0 No such event.
1 Protocol state changed.
SSI3_IF
SSI2_IF
SSI1_IF
SSI0_IF Slot Status Counter Incremented Interrupt Flag — Each of these flags is set when the SLOTSTATUSCNT
field in the corresponding
Slot Status Counter Registers (SSCR0–SSCR3) is incremented.
0 No such event.
1 The corresponding slot status counter has incremented.
EVT_IF Even Cycle Table Written Interrupt Flag — This flag is set if the controller has written the sync frame
measurement / ID tables into the FlexRay memory for the even cycle.
0 No such event.
1 Sync frame measurement table written.
ODT_IF Odd Cycle Table Written Interrupt Flag — This flag is set if the controller has written the sync frame
measurement / ID tables into the FlexRay memory for the odd cycle.
0 No such event..
1 Sync frame measurement table written