PXS20RM Datasheet, PDF (771/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

FlexRay Communication Controller
Each of these eight registers holds the status vector of the slot specified in the corresponding internal slot
status selection register, which can be programmed using the Slot Status Selection Register (FR_SSSR).
Each register is updated after the end of the corresponding slot as shown in Figure 26-158. The register
bits are directly related to the protocol variables and described in more detail in Section 26.6.18, Slot
Status Monitoring.
NOTE
Slot status information of the message buffers should not be used when any
one of the the error flags FR_CHIERFR[SBCF_EF] or
FR_CHIERFR[ILSA_EF] is set.
Table 26-56. FR_SSR0–FR_SSR7 Field Descriptions
Field
VFB
SYB
NFB
SUB
SEB
CEB
BVB
TCB
VFA
SYA
NFA
Description
Valid Frame on Channel B — protocol related variable: vSS!ValidFrame channel B
0 vSS!ValidFrame = 0
1 vSS!ValidFrame = 1
Sync Frame Indicator Channel B — protocol related variable: vRF!Header!SyFIndicator channel B
0 vRF!Header!SyFIndicator = 0
1 vRF!Header!SyFIndicator = 1
Null Frame Indicator Channel B — protocol related variable: vRF!Header!NFIndicator channel B
0 vRF!Header!NFIndicator = 0
1 vRF!Header!NFIndicator = 1
Startup Frame Indicator Channel B — protocol related variable: vRF!Header!SuFIndicator channel
B
0 vRF!Header!SuFIndicator = 0
1 vRF!Header!SuFIndicator = 1
Syntax Error on Channel B — protocol related variable: vSS!SyntaxError channel B
0 vSS!SyntaxError = 0
1 vSS!SyntaxError = 1
Content Error on Channel B — protocol related variable: vSS!ContentError channel B
0 vSS!ContentError = 0
1 vSS!ContentError = 1
Boundary Violation on Channel B — protocol related variable: vSS!BViolation channel B
0 vSS!BViolation = 0
1 vSS!BViolation = 1
Transmission Conflict on Channel B — protocol related variable: vSS!TxConflict channel B
0 vSS!TxConflict = 0
1 vSS!TxConflict = 1
Valid Frame on Channel A — protocol related variable: vSS!ValidFrame channel A
0 vSS!ValidFrame = 0
1 vSS!ValidFrame = 1
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
Freescale Semiconductor
PXS20 Microcontroller Reference Manual, Rev. 1
26-59