Freescale Semiconductor FlexRay MFR4310 - Figure 3-30. Sync Frame Table Configuration, Control, Status Register (SFTCCSR); Table 3-37. SFTOR Field Description; Table 3-38. SFTCCSR Field Descriptions

FlexRay Module (FLEXRAYV4)
MFR4310 Reference Manual, Rev. 2
Freescale Semiconductor 101
3.3.2.31 Sync Frame Table Configuration, Control, Status Register (SFTCCSR)
This register provides configuration, control, and status information related to the generation and access
of the clock sync ID tables and clock sync measurement tables. For a detailed description, see
Section 3.4.12, “Sync Frame ID and Sync Frame Deviation Tables”.
Table 3-37. SFTOR Field Description
Field Description
15–1
SFTOR
Sync Frame Table Offset — The offset of the Sync Frame Tables in the FlexRay Memory. This offset is required
to be 16-bit aligned. Thus STF_OFFSET[0] is always 0.
0x0044 Write: Normal Mode
1514131211109876543210
R 0 0 CYCNUM ELKS OLKS EVAL OVAL 0 0
SDVEN
SIDEN
W
ELKT OLKT
OPT
Reset0000000000000000
Figure 3-30. Sync Frame Table Configuration, Control, Status Register (SFTCCSR)
Table 3-38. SFTCCSR Field Descriptions
Field Description
15
ELKT
Even Cycle Tables Lock/Unlock Trigger — This trigger bit is used to lock and unlock the even cycle tables.
0No effect
1 Triggers lock/unlock of the even cycle tables.
14
OLKT
Odd Cycle Tables Lock/Unlock Trigger — This trigger bit is used to lock and unlock the odd cycle tables.
0No effect
1 Triggers lock/unlock of the odd cycle tables.
13–8
CYCNUM
Cycle Number — This field provides the number of the cycle in which the currently locked table was
recorded. If none or both tables are locked, this value is related to the even cycle table.
7
ELKS
Even Cycle Tables Lock Status — This status bit indicates whether the application has locked the even
cycle tables.
0 Application has not locked the even cycle tables.
1 Application has locked the even cycle tables.
6
OLKS
Odd Cycle Tables Lock Status — This status bit indicates whether the application has locked the odd cycle
tables.
0 Application has not locked the odd cycle tables.
1 Application has locked the odd cycle tables.
5
EVAL
Even Cycle Tables Valid — This status bit indicates whether the Sync Frame ID and Sync Frame Deviation
Tables for the even cycle are valid. The FlexRay module clears this status bit when it starts updating the
tables, and sets this bit when it has finished the table update.
0 Tables are not valid (update is ongoing)
1 Tables are valid (consistent).
4
OVAL
Odd Cycle Tables Valid — This status bit indicates whether the Sync Frame ID and Sync Frame Deviation
Tables for the odd cycle are valid. The FlexRay module clears this status bit when it starts updating the tables,
and sets this bit when it has finished the table update.
0 Tables are not valid (update is ongoing)
1 Tables are valid (consistent).