Freescale Semiconductor FlexRay MFR4310 - Figure 3-102. Receive Message Buffer Slot Status Structure (Chab); Figure 3-103. Receive Message Buffer Slot Status Structure (Cha); Figure 3-104. Receive Message Buffer Slot Status Structure (Chb); Table 3-82. Receive Message Buffer Slot Status Content

FlexRay Module (FLEXRAYV4)
MFR4310 Reference Manual, Rev. 2
146 Freescale Semiconductor
The meaning of the bits in the slot status structure is explained in Table 3-83.
Figure 3-102. Receive Message Buffer Slot Status Structure (ChAB)
Figure 3-103. Receive Message Buffer Slot Status Structure (ChA)
Figure 3-104. Receive Message Buffer Slot Status Structure (ChB)
Table 3-82. Receive Message Buffer Slot Status Content
Receive Message Buffer Type Slot Status Content
Individual Receive Message Buffer assigned to both channels
MBCCSRn.CHA = 1 and MBCCSRn.CHB = 1
see Figure 3-102
Individual Receive Message Buffer assigned to channel A
MBCCSRn.CHA = 1 and MBCCSRn.CHB = 0
see Figure 3-103
Individual Receive Message Buffer assigned to channel B
MBCCSRn.CHA = 0 and MBCCSRn.CHB = 1
see Figure 3-104
Receive FIFO Channel A Message Buffer see Figure 3-103
Receive FIFO Channel B Message Buffer see Figure 3-104
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R VFB SYB NFB SUB SEB CEB BVB CH VFA SYA NFA SUA SEA CEA BVA 0
Reset – – – – – – – – – – – – – – – –
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R 0 0 0 0 0 0 0 0 VFA SYA NFA SUA SEA CEA BVA 0
Reset – – – – – – – – – – – – – – – –
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R VFB SYB NFB SUB SEB CEB BVB 1 0 0 0 0 0 0 0 0
Reset – – – – – – – – – – – – – – – –
Table 3-83. Receive Message Buffer Slot Status Field Descriptions
Field Description
Common Message Buffer Status Bits
15
VFB
Valid Frame on Channel B — protocol related variable: vSS!ValidFrame channel B
0 vSS!ValidFrame = 0
1 vSS!ValidFrame = 1
14
SYB
Sync Frame Indicator Channel B — protocol related variable: vRF!Header!SyFIndicator channel B
0 vRF!Header!SyFIndicator = 0
1 vRF!Header!SyFIndicator = 1
13
NFB
Null Frame Indicator Channel B — protocol related variable: vRF!Header!NFIndicator channel B
0 vRF!Header!NFIndicator = 0
1 vRF!Header!NFIndicator = 1
12
SUB
Startup Frame Indicator Channel B — protocol related variable: vRF!Header!SuFIndicator channel B
0 vRF!Header!SuFIndicator = 0
1 vRF!Header!SuFIndicator = 1