Chapter 13 FlexRay Communication Controller (FLEXRAY)
MC9S12XF - Family Reference Manual, Rev.1.19
Freescale Semiconductor
555
13.6.5.3
Message Buffer Data Field Description
The message buffer data eld is used to store the frame payload data, or a part of it, of the frame to be
transmitted to or received from the FlexRay bus. The minimum required length of this eld depends on the
message buffer type that the physical message buffer is assigned to and is given in
Table 13-89. The
9
BVB
Boundary Violation on Channel B — protocol related variable: vSS!BViolation channel B
0 vSS!BViolation = 0
1 vSS!BViolation = 1
8
TCB
Transmission Conict on Channel B — protocol related variable: vSS!TxConict channel B
0 vSS!TxConict = 0
1 vSS!TxConict = 1
7
VFA
Valid Frame on Channel A — protocol related variable: vSS!ValidFrame channel A
0 vSS!ValidFrame = 0
1 vSS!ValidFrame = 1
6
SYA
Sync Frame Indicator Channel A — protocol related variable: vRF!Header!SyFIndicator channel A
0 vRF!Header!SyFIndicator = 0
1 vRF!Header!SyFIndicator = 1
5
NFA
Null Frame Indicator Channel A — protocol related variable: vRF!Header!NFIndicator channel A
0 vRF!Header!NFIndicator = 0
1 vRF!Header!NFIndicator = 1
4
SUA
Startup Frame Indicator Channel A — protocol related variable: vRF!Header!SuFIndicator channel A
0 vRF!Header!SuFIndicator = 0
1 vRF!Header!SuFIndicator = 1
3
SEA
Syntax Error on Channel A — protocol related variable: vSS!SyntaxError channel A
0 vSS!SyntaxError = 0
1 vSS!SyntaxError = 1
2
CEA
Content Error on Channel A — protocol related variable: vSS!ContentError channel A
0 vSS!ContentError = 0
1 vSS!ContentError = 1
1
BVA
Boundary Violation on Channel A — protocol related variable: vSS!BViolation channel A
0 vSS!BViolation = 0
1 vSS!BViolation = 1
0
TCA
Transmission Conict on Channel A — protocol related variable: vSS!TxConict channel A
0 vSS!TxConict = 0
1 vSS!TxConict = 1
Table 13-89. Message Buffer Data Field Minimum Length
physical message buffer
assigned to
minimum length dened by
Individual Message Buffer in Segment 1
MBDSR.MBSEG1DS
Receive Shadow Buffer in Segment 1
MBDSR.MBSEG1DS
Individual Message Buffer in Segment 2
MBDSR.MBSEG2DS
Receive Shadow Buffer in Segment 2
MBDSR.MBSEG2DS
Receive FIFO for channel A
RFDSR.ENTRY_SIZE (RFSR.SEL = 0)
Table 13-88. Transmit Message Buffer Slot Status Structure Field Descriptions (continued)
Field
Description