PXN20RM Datasheet, PDF (708/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

FlexRay Communication Controller (FlexRAY)
Field
SYA
NFA
SUA
SEA
CEA
BVA
Table 26-88. Receive Message Buffer Slot Status Field Descriptions (continued)
Description
Sync Frame Indicator Channel A — protocol related variable: vRF!Header!SyFIndicator channel A.
0 vRF!Header!SyFIndicator = 0.
1 vRF!Header!SyFIndicator = 1.
Null Frame Indicator Channel A — protocol related variable: vRF!Header!NFIndicator channel A.
0 vRF!Header!NFIndicator = 0.
1 vRF!Header!NFIndicator = 1.
Startup Frame Indicator Channel A — protocol related variable: vRF!Header!SuFIndicator channel A.
0 vRF!Header!SuFIndicator = 0.
1 vRF!Header!SuFIndicator = 1.
Syntax Error on Channel A — protocol related variable: vSS!SyntaxError channel A.
0 vSS!SyntaxError = 0.
1 vSS!SyntaxError = 1.
Content Error on Channel A — protocol related variable: vSS!ContentError channel A.
0 vSS!ContentError = 0.
1 vSS!ContentError = 1.
Boundary Violation on Channel A — protocol related variable: vSS!BViolation channel A.
0 vSS!BViolation = 0.
1 vSS!BViolation = 1.
Transmit Message Buffer Slot Status Description
This section describes the slot status structure for transmit message buffers. Only the TCA and TCB status
bits are directly related to the transmission process. All other status bits in this structure are related to a
receive process that may have occurred. The content of the slot status structure for transmit message
buffers depends on the channel assignment as given by Table 26-89.
Table 26-89. Transmit Message Buffer Slot Status Content
Transmit Message Buffer Type
Individual Transmit Message Buffer assigned to both channels
MBCCSRn[CHA] = 1 and MBCCSRn[CHB] = 1
Individual Transmit Message Buffer assigned to channel A
MBCCSRn[CHA] = 1 and MBCCSRn[CHB] = 0
Individual Transmit Message Buffer assigned to channel B
MBCCSRn[CHA] = 0 and MBCCSRn[CHB] = 1
Slot Status Content
see Figure 26-115
see Figure 26-116
see Figure 26-117
The meaning of the bits in the slot status structure is described in Table 26-88.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R VFB SYB NFB SUB SEB CEB BVB TCB VFA SYA NFA SUA SEA CEA BVA TCA
Reset –
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Figure 26-115. Transmit Message Buffer Slot Status Structure (ChAB)
26-94
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor