FlexRay Communication Controller (FLEXRAY)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
30-44
Freescale Semiconductor
Preliminary
This register defines the Flexray Memory related offset for sync frame tables. For more details, see
Section 30.6.12, “Sync Frame ID and Sync Frame Deviation Tables”
.
30.5.2.33 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 30.6.12, “Sync Frame ID and Sync Frame Deviation Tables
”.
Table 30-39. SFTOR Field Description
Field
Description
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.
Base + 0x0044
Write: Normal Mode
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
CYCNUM
ELKS OLKS EVAL OVAL
0
0
SDV
EN
SID
EN
W ELKT OLKT
OPT
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 30-33. Sync Frame Table Configuration, Control, Status Register (SFTCCSR)
Table 30-40. SFTCCSR Field Descriptions (Sheet 1 of 2)
Field
Description
ELKT
Even Cycle Tables Lock/Unlock Trigger. This trigger bit is used to lock and unlock the even cycle tables.
0 No effect
1 Triggers lock/unlock of the even cycle tables.
OLKT
Odd Cycle Tables Lock/Unlock Trigger. This trigger bit is used to lock and unlock the odd cycle tables.
0 No effect
1 Triggers lock/unlock of the odd cycle tables.
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.
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.
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.
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 block 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).