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FlexRay Module Registers

Table 26-139. Aggregated Channel Status Register (ACS) Field Descriptions (continued)

Bit Field Value Description

9 SEDB Syntax error detected on channel B. One or more syntax errors in static or dynamic slots including

symbol window and NIT were observed on channel B.

0 No syntax error observed

1 Syntax error(s) observed on channel B

8 VFRB Valid frame received on channel B. One or more valid frames were received on channel B in any static

or dynamic slot during the observation period. Reset is under control of the host.

0 No valid frame received

1 Valid frame(s) received on channel B

7-5 Reserved 0 Read returns 0. Writes have no effect.

4 SBVA Slot boundary violation on channel A. One or more slot boundary violations were observed on channel

A at any time during the observation period (static or dynamic slots including symbol window and NIT).

0 No slot boundary violation observed

1 Slot boundary violation(s) observed on channel A

3 CIA Communication indicator channel A. One or more valid frames were received on channel A in slots that

also contained any additional communication during the observation period, i.e. one or more slots

received a valid frame AND had any combination of either syntax error OR content error OR slot

boundary violation.

0 No valid frame(s) received in slots containing any additional communication

1 Valid frame(s) received on channel A in slots containing any additional communication

2 CEDA Content error detected on channel A. One or more frames with a content error were received on

channel A in any static or dynamic slot during the observation period.

0 No frame with content error received

1 Frame(s) with content error received on channel A

1 SEDA Syntax error detected on channel A. One or more syntax errors in static or dynamic slots including

symbol window and NIT were observed on channel A.

0 No syntax error observed

1 Syntax error(s) observed on channel A

0 VFRA Valid frame received on channel A. One or more valid frames were received on channel A in any static

or dynamic slot during the observation period.

0 No valid frame received

1 Valid frame(s) received on channel A

1325

SPNU563–May 2014 FlexRay Module

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