Freescale Semiconductor FlexRay MFR4310 - Figure 3-14. Message Buffer Interrupt Vector Register (MBIVEC); Table 3-22. MBIVEC Field Descriptions

FlexRay Module (FLEXRAYV4)
MFR4310 Reference Manual, Rev. 2
88 Freescale Semiconductor
3.3.2.15 Message Buffer Interrupt Vector Register (MBIVEC)
This register indicates the lowest numbered receive message buffer and the lowest numbered transmit
message buffer that have their interrupt status flag MBIF and interrupt enable MBIE bits asserted. This
means that message buffers with lower message buffer numbers have higher priority.
3
SPL_EF
Static Payload Length Error Flag — This flag is set if the payload length written into the message buffer header
field of a single or double transmit message buffer assigned to the static segment is different from the payload
length for the static segment as it is configured in the corresponding protocol configuration register field
payload_length_static in the Protocol Configuration Register 19 (PCR19).
0 No such error occurred
1 Static payload length error occurred
2
NML_EF
Network Management Length Error Flag — This flag is set if the payload length written into the header
structure of a receive message buffer assigned to the static segment is less than the configured length of the
Network Management Vector as configured in the Network Management Vector Length Register (NMVLR). In
this case, the received part of the Network Management Vector is used to update the Network Management
Vector.
0 No such error occurred
1 Network management length error occurred
1
NMF_EF
Network Management Frame Error Flag — This flag is set if a received message in the static segment with a
Preamble Indicator flag PP asserted has its Null Frame indicator flag NF asserted as well. In this case, the Global
Network Management Registers (see Network Management Vector Registers (NMVR0–NMVR5)) are not
updated.
0 No such error occurred
1 Network management frame error occurred
0
ILSA_EF
Illegal System Memory Access Error Flag — This flag is set if the external system memory subsystem has
detected and indicated an illegal system memory access from the FlexRay module. The exact meaning of an
illegal system memory access is defined by the current implementation of the memory subsystem.
0 No such event.
1 Illegal system memory access occurred.
0x0022
1514131211109876543210
R 0 TBIVEC 0 RBIVEC
W
Reset0000000000000000
Figure 3-14. Message Buffer Interrupt Vector Register (MBIVEC)
Table 3-22. MBIVEC Field Descriptions
Field Description
14-8
TBIVEC
Transmit Buffer Interrupt Vector — This field provides the number of the lowest numbered enabled transmit
message buffer that has its interrupt status flag MBIF and its interrupt enable bit MBIE set. If there is no transmit
message buffer with the interrupt status flag MBIF and the interrupt enable MBIE bits asserted, the value in this
field is set to 0.
6-0
RBIVEC
Receive Buffer Interrupt Vector — This field provides the message buffer number of the lowest numbered
receive message buffer which has its interrupt flag MBIF and its interrupt enable bit MBIE asserted. If there is
no receive message buffer with the interrupt status flag MBIF and the interrupt enable MBIE bits asserted, the
value in this field is set to 0.
Table 3-21. CHIERFR Field Descriptions (Continued)
Field Description