FlexRay Communication Controller (FLEXRAY)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
30-32
Freescale Semiconductor
Preliminary
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.
30.5.2.17 Channel A Status Error Counter Register (CASERCR)
This register provides the channel status error counter for channel A. The protocol engine generates a slot
status vector for each static slot, each dynamic slot, the symbol window, and the NIT. The slot status vector
contains the four protocol related error indicator bits
vSS!SyntaxError, vSS!ContentError, vSS!BViolation
,
and
vSS!TxConflict
. The FlexRay block increments the status error counter by 1 if, for a slot or segment,
at least one error indicator bit is set to 1. The counter wraps around after it has reached the maximum value.
For more information on slot status monitoring, see
Section 30.6.18, “Slot Status Monitoring
”.
30.5.2.18 Channel B Status Error Counter Register (CBSERCR)
Table 30-23. MBIVEC Field Descriptions
Field
Description
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.
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.
Base + 0x0024
Additional Reset: RUN Command
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
STATUS_ERR_CNT
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 30-17. Channel A Status Error Counter Register (CASERCR)
Table 30-24. CASERCR Field Descriptions
Field
Description
STATUS_ERR_CNT Channel Status Error Counter. This field provides the current value channel status error counter. The
counter value is updated within the first macrotick of the following slot or segment.
Base + 0x0026
Additional Reset: RUN Command
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
STATUS_ERR_CNT
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 30-18. Channel B Status Error Counter Register (CBSERCR)