MC9S12XF512_1 Datasheet, PDF (495/1306 Pages) Freescale Semiconductor, Inc – S12X Microcontrollers

Chapter 13 FlexRay Communication Controller (FLEXRAY)
SSEB, and MTA are updated by the FlexRay block after the end of the symbol window and before the end
of the current communication cycle. If no symbol window is configured, the symbol window related status
bits remain in their reset state. The clock synchronization related CLKCORRFAILCNT is updated by the
FlexRay block after the end of the static segment and before the end of the current communication cycle.
Table 13-29. PSR2 Field Descriptions (Sheet 1 of 2)
Field
15
NBVB
14
NSEB
13
STCB
12
SBVB
11
SSEB
10
MTB
9
NBVA
8
NSEA
7
STCA
Description
NIT Boundary Violation on Channel B — protocol related variable: vSS!BViolation for NIT on channel B
This status bit is set when there was some media activity on the FlexRay bus channel B at the end of the NIT.
0 No such event
1 Media activity at boundaries detected
NIT Syntax Error on Channel B — protocol related variable: vSS!SyntaxError for NIT on channel B
This status bit is set when a syntax error was detected during NIT on channel B.
0 No such event
1 Syntax error detected
Symbol Window Transmit Conflict on Channel B — protocol related variable: vSS!TxConflict for symbol
window on channel B
This status bit is set if there was a transmission conflict during the symbol window on channel B.
0 No such event
1 Transmission conflict detected
Symbol Window Boundary Violation on Channel B — protocol related variable: vSS!BViolation for symbol
window on channel B
This status bit is set if there was some media activity on the FlexRay bus channel B at the start or at the end of
the symbol window.
0 No such event
1 Media activity at boundaries detected
Symbol Window Syntax Error on Channel B — protocol related variable: vSS!SyntaxError for symbol window
on channel B
This status bit is set when a syntax error was detected during the symbol window on channel B.
0 No such event
1 Syntax error detected
Media Access Test Symbol MTS Received on Channel B — protocol related variable: vSS!ValidMTS for
Symbol Window on channel B
This status bit is set if the Media Access Test Symbol MTS was received in the symbol window on channel B.
0 No such event
1 MTS symbol received
NIT Boundary Violation on Channel A — protocol related variable: vSS!BViolation for NIT on channel A
This status bit is set when there was some media activity on the FlexRay bus channel A at the end of the NIT.
0 No such event
1 Media activity at boundaries detected
NIT Syntax Error on Channel A — protocol related variable: vSS!SyntaxError for NIT on channel A
This status bit is set when a syntax error was detected during NIT on channel A.
0 No such event
1 Syntax error detected
Symbol Window Transmit Conflict on Channel A — protocol related variable: vSS!TxConflict for symbol
window on channel A
This status bit is set if there was a transmission conflicts during the symbol window on channel A.
0 No such event
1 Transmission conflict detected
MC9S12XF - Family Reference Manual, Rev.1.19
Freescale Semiconductor
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