NXP Semiconductors PXN2020 - Page 707

FlexRay Communication Controller (FlexRAY)
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 26-93
Figure 26-112. Receive Message Buffer Slot Status Structure (ChAB)
Figure 26-113. Receive Message Buffer Slot Status Structure (ChA)
Figure 26-114. Receive Message Buffer Slot Status Structure (ChB)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R VFB SYB NFB SUB SEB CEB BVB CH VFA SYA NFA SUA SEA CEA BVA 0
Reset – – – – – – – – – – – – – – – –
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 VFA SYA NFA SUA SEA CEA BVA 0
Reset – – – – – – – – – – – – – – – –
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R VFB SYB NFB SUB SEB CEB BVB 1 0 0 0 0 0 0 0 0
Reset – – – – – – – – – – – – – – – –
Table 26-88. Receive Message Buffer Slot Status Field Descriptions
Field Description
Common Message Buffer Status Bits
VFB Valid Frame on Channel B — protocol related variable: vSS!ValidFrame channel B.
0 vSS!ValidFrame = 0.
1 vSS!ValidFrame = 1.
SYB Sync Frame Indicator Channel B — protocol related variable: vRF!Header!SyFIndicator channel B.
0 vRF!Header!SyFIndicator = 0.
1 vRF!Header!SyFIndicator = 1.
NFB Null Frame Indicator Channel B — protocol related variable: vRF!Header!NFIndicator channel B.
0 vRF!Header!NFIndicator = 0.
1 vRF!Header!NFIndicator = 1.
SUB Startup Frame Indicator Channel B — protocol related variable: vRF!Header!SuFIndicator channel B.
0 vRF!Header!SuFIndicator = 0.
1 vRF!Header!SuFIndicator = 1.
SEB Syntax Error on Channel B — protocol related variable: vSS!SyntaxError channel B.
0 vSS!SyntaxError = 0.
1 vSS!SyntaxError = 1.
CEB Content Error on Channel B — protocol related variable: vSS!ContentError channel B.
0 vSS!ContentError = 0.
1 vSS!ContentError = 1.
BVB Boundary Violation on Channel B — protocol related variable: vSS!BViolation channel B.
0 vSS!BViolation = 0.
1 vSS!BViolation = 1.
CH Channel first valid received — This status bit applies only to receive message buffers assigned to the static
segment and to both channels. It indicates the channel that has received the first valid frame in the slot. This flag
is set to 0 if no valid frame was received at all in the subscribed slot.
0 first valid frame received on channel A, or no valid frame received at all.
0 first valid frame received on channel B.
VFA Valid Frame on Channel A — protocol related variable: vSS!ValidFrame channel A.
0 vSS!ValidFrame
= 0.
1 vSS!ValidFrame = 1.