PXN20RM Datasheet, PDF (644/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

FlexRay Communication Controller (FlexRAY)
Table 26-21. CHIERFR Field Descriptions (continued)
Field
DPL_EF
SPL_EF
NML_EF
NMF_EF
ILSA_EF
Description
Dynamic 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 dynamic segment is greater than the
maximum payload length for the dynamic segment as it is configured in the corresponding protocol configuration
register field max_payload_length_dynamic in the Protocol Configuration Register 24 (PCR24).
0 No such error occurred.
1 Dynamic payload length error occurred.
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.
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 will be used to update the Network Management
Vector.
0 No such error occurred.
1 Network management length error occurred.
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.
Illegal System Bus Address Error Flag — This flag is set if the external system bus subsystem has detected
an access to an illegal system bus address from the controller (see Section 26.6.19.1, System Bus Illegal
Address Access).
0 No such event.
1 Illegal system bus address accessed.
26.5.2.16 Message Buffer Interrupt Vector Register (MBIVEC)
Base + 0x0022
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0
TBIVEC
0
RBIVEC
W
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 26-16. 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.
26-30
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor