Freescale Semiconductor FlexRay MFR4310 - Figure 3-10. Protocol Interrupt Flag Register 1 (PIFR1); Table 3-18. PIFR1 Field Descriptions

FlexRay Module (FLEXRAYV4)
MFR4310 Reference Manual, Rev. 2
Freescale Semiconductor 83
3.3.2.11 Protocol Interrupt Flag Register 1 (PIFR1)
The register holds one set of the protocol-related individual interrupt flags. The application can clear each
interrupt flag by writing a 1 to it. Writing a 0 does not change the state of the flag.
0x001A Write: Normal Mode
1514131211109876543210
R
EMC_IF
IPC_IF
PECF_IF
PSC_IF
SSI3_IF SSI2_IF SSI1_IF SSI0_IF
00
EVT_IF
ODT_IF
0000
W
Reset0000000000000000
Figure 3-10. Protocol Interrupt Flag Register 1 (PIFR1)
Table 3-18. PIFR1 Field Descriptions
Field Description
15
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 FlexRay module.
0 No such event.
1 ERRMODE field changed.
14
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 3.7.2, “Protocol Control Command Execution”.
0 No such event.
1 Illegal protocol control command detected.
13
PECF_IF
Protocol Engine Communication Failure Interrupt Flag — This flag is set if the FlexRay module has detected
a communication failure between the protocol engine and the controller host interface
0 No such event.
1 Protocol Engine Communication Failure detected.
12
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.
11–8
SSI[3:0]_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.
5
EVT_IF
Even Cycle Table Written Interrupt Flag — This flag is set if the FlexRay module 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
4
ODT_IF
Odd Cycle Table Written Interrupt Flag — This flag is set if the FlexRay module 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