FlexRay Communication Controller (FLEXRAY)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
30-77
Preliminary
30.5.2.68 Message Buffer Index Registers (MBIDXRn)
Table 30-80. MBFIDRn Field Descriptions
Field
Description
FID
Frame ID — The semantic of this field depends on the message buffer transfer type.
• Receive Message Buffer: This field is used as a filter value to determine if the message buffer is used for
reception of a message received in a slot with the slot ID equal to FID.
• Transmit Message Buffer: This field is used to determine the slot in which the message in this message buffer
should be transmitted.
Base + 0x0106 (MBIDXR0)
Base + 0x010E (MBIDXR1)
...
Base + 0x02FE (MBIDXR63)
Write:
POC:config
or MB_DIS
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
0
0
0
0
0
0
0
MBIDX
W
Reset
0
0
0
0
0
0
0
0
0
-
-
-
-
-
-
-
Figure 30-98. Message Buffer Index Registers (MBIDXRn)
Table 30-81. MBIDXRn Field Descriptions
Field
Description
MBIDX
Message Buffer Index. This field provides the index of the message buffer header field of the physical message
buffer that is currently associated with this message buffer.
The application writes the index of the initially associated message buffer header field into this register. The
FlexRay block updates this register after frame reception or transmission.