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FlexRay Module Registers
1385
SPNU563A–March 2018
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FlexRay Module
26.3.2.4.11 Odd Sync ID Registers (OSID[1-15])
Registers OSID1 to OSID15 hold the frame IDs of the sync frames received in odd communication cycles,
assorted in ascending order, with register OSID1 holding the lowest received sync frame ID. If the node
transmits a sync frame in an odd communication cycle by itself, register OSID1 holds the respective sync
frame ID as configured in message buffer 0. The value is updated during the NIT of each odd
communication cycle. This register is reset when the Communication Controller leaves CONFIG state or
enters STARTUP state.
Figure 26-156 and Table 26-135 illustrate this register.
Figure 26-156. Odd Sync ID Registers (OSIDn) [offset_CC = 170h-1A8h]
31 16
Reserved
R-0
15 14 13 10 9 0
RXOB RXOA Reserved OID
R-0 R-0 R-0 R-0
LEGEND: R = Read only; -n = value after reset
Table 26-135. Odd Sync ID Registers (OSIDn) Field Descriptions
Bit Field Value Description
31-16 Reserved 0 Reads return 0. Writes have no effect.
15 RXOB Received odd sync ID on channel B. A sync frame corresponding to the stored even sync ID was
received on channel B.
0 Sync frame is not received on channel B.
1 Sync frame is received on channel B.
14 RXOA Received odd sync ID on channel A. A sync frame corresponding to the stored even sync ID was
received on channel A.
0 Sync frame is not received on channel A.
1 Sync frame is received on channel A.
13-10 Reserved 0 Reads return 0. Writes have no effect.
9-0 OID Odd Sync ID. Sync frame ID odd communication cycle.
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