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Chapter 13 FlexRay Communication Controller (FLEXRAY)
MC9S12XF - Family Reference Manual, Rev.1.19
500
Freescale Semiconductor
13.5.2.29 Offset Correction Value Register (OFCORVR)
This register provides the sign extended offset correction value in microticks as it was calculated by the
clock synchronization algorithm. The FlexRay block updates this register during the NIT.
13.5.2.30 Combined Interrupt Flag Register (CIFRR)
Table 13-35. RTCORVR Field Descriptions
Field
Description
15–0
RATECORR
Rate Correction Value — protocol related variable: vRateCorrection (before value limitation and external rate
correction)
This eld provides the sign extended rate correction value in microticks as it was calculated by the clock
synchronization algorithm. The value is represented in 2’s complement format. This value does not include the
value limitation and the application of the external rate correction. If the magnitude of the internally calculated
Note: If the FlexRay block was not able to calculate a new rate correction term due to a lack of synchronization
frames, the RATECORR value is not updated.
Module Base + 0x003A
Additional Reset: RUN Command
15
14
13
12
11
10
9876543210
R
OFFSETCORR
W
Reset
0000000000000000
Figure 13-29. Offset Correction Value Register (OFCORVR)
Table 13-36. OFCORVR Field Descriptions
Field
Description
15–0
OFFSET-
CORR
Offset Correction Value — protocol related variable: vOffsetCorrection (before value limitation and external
offset correction)
This eld provides the sign extended offset correction value in microticks as it was calculated by the clock
synchronization algorithm. The value is represented in 2’s complement format. This value does not include the
value limitation and the application of the external offset correction. If the magnitude of the internally calculated
Note: If the FlexRay block was not able to calculate an new offset correction term due to a lack of
synchronization frames, the OFFSETCORR value is not updated.
Module Base + 0x003C
15
14
13
12
11
10
9876543210
R
00000000
MIF
PRIF
CHIF
WUP
IF
FNEB
IF
FNEA
IF
RBIF
TBIF
W
Reset
0000000000000000
Figure 13-30. Combined Interrupt Flag Register (CIFRR)