NXP Semiconductors MPC5644A, Reference Manual, Page: 1470 / 1735

FlexRay Communication Controller (FlexRay)
MPC5644A Microcontroller Reference Manual, Rev. 6
1470 Freescale Semiconductor
33.5.2.14 Protocol Interrupt Flag Register 1 (FR_PIFR1)
The register holds one set of the protocol-related individual interrupt flags.
TI1_IF Timer 1 Expired Interrupt Flag — This flag is set whenever timer 1 expires.
0 No such event
1 Timer 1 has reached its time limit
CYS_IF Cycle Start Interrupt Flag — This flag is set when a communication cycle starts.
0 No such event
1 Communication cycle started.
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
PS
C
_
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 33-14. Protocol Interrupt Flag Register 1 (FR_PIFR1)
Table 33-19. FR_PIFR1 field description
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 (FR_PSR0) is changed by the CC.
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 (FR_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 33.7.7,
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 CC has detected a
communication failure between the protocol engine and the CC 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 (FR_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
(FR_SSCR0–FR_SSCR3) is incremented.
0 No such event.
1 The corresponding slot status counter has incremented.
Table 33-18. FR_PIFR0 field description (continued)
Field Description