參數(shù)資料
型號(hào)： MFR4310E1MAE40
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 2 CHANNEL(S), 10M bps, SERIAL COMM CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, 0.50 PITCH, LEAD FREE, MS-026BCD, LQFP-64
文件頁(yè)數(shù)： 249/268頁(yè)
文件大?。?/td> 1718K
代理商： MFR4310E1MAE40
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FlexRay Module (FLEXRAYV4)
MFR4310 Reference Manual, Rev. 1
Freescale Semiconductor
81
3.3.2.10
Protocol Interrupt Flag Register 0 (PIFR0)
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..
0x0018
Write: Normal Mode
15
14
13
12
11
10
98
76543
210
R
FA
T
L
_
IF
INT
L
_IF
ILCF_IF
CSA_IF
MRC_IF
MO
C_I
F
C
L_IF
MXS_IF
MTX_IF
LT
X
B
_
IF
LT
X
A
_
IF
TBVB_IF
TBV
A
_I
F
TI
2_I
F
TI
1_I
F
CYS_IF
W
Reset
000000
00000
Figure 3-9. Protocol Interrupt Flag Register 0 (PIFR0)
Table 3-17. PIFR0 Field Descriptions
Field
Description
15
FATL_IF
Fatal Protocol Error Interrupt Flag — This flag is set when the protocol engine has detected a fatal protocol
error. In this case, the protocol engine goes into the POC:halt state immediately. The fatal protocol errors are:
1) pLatestTx violation, as described in the MAC process of the FlexRay protocol
2) transmission across slot boundary violation, as described in the FSP process of the FlexRay protocol
0 No such event.
1 Fatal protocol error detected.
14
INTL_IF
Internal Protocol Error Interrupt Flag — This flag is set when the protocol engine has detected an internal
protocol error. In this case, the protocol engine goes into the POC:halt state immediately. An internal protocol
error occurs when the protocol engine has not finished a calculation and a new calculation is requested. This
can be caused by a hardware error.
0 No such event.
1 Internal protocol error detected.
13
ILCF_IF
Illegal Protocol Configuration Interrupt Flag — This flag is set when the protocol engine has detected an
illegal protocol configuration parameter setting. In this case, the protocol engine goes into the POC:halt state
immediately.
The protocol engine checks the listen_timeout value programmed into the Protocol Configuration Register 14
(PCR14) and Protocol Configuration Register 15 (PCR15) when the CONFIG_COMPLETE command was sent
by the application via the Protocol Operation Control Register (POCR). If the value of listen_timeout is equal to
zero, the protocol configuration setting is considered as illegal.
0 No such event.
1 Illegal protocol configuration detected.
12
CSA_IF
Cold Start Abort Interrupt Flag — This flag is set when the configured number of allowed cold start attempts
is reached and none of these attempts was successful. The number of allowed cold start attempts is configured
by the coldstart_attempts field in the Protocol Configuration Register 3 (PCR3).
0 No such event.
1 Cold start aborted and no more coldstart attempts allowed.
11
MRC_IF
Missing Rate Correction Interrupt Flag — This flag is set when an insufficient number of measurements is
available for rate correction at the end of the communication cycle.
0 No such event
1 Insufficient number of measurements for rate correction detected
10
MOC_IF
Missing Offset Correction Interrupt Flag — This flag is set when an insufficient number of measurements is
available for offset correction. This is related to the MISSING_TERM event in the CSP process for offset
correction in the FlexRay protocol.
0 No such event.
1 Insufficient number of measurements for offset correction detected.
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