FlexRay Communication Controller (FLEXRAY)
22-38
Freescale Semiconductor
PXR40 Microcontroller Reference Manual, Rev. 1
22.5.2.26 Slot Counter Channel B Register (SLTCTBR)
This register provides the number of the current slot in the current communication cycle for channel B.
22.5.2.27 Rate Correction Value Register (RTCORVR)
This register provides the sign extended rate correction value in microticks as it was calculated by the clock
synchronization algorithm. The controller updates this register during the NIT of each odd numbered
communication cycle.
Base + 0x0036
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
0
0
0
SLOTCNTB
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 22-26. Slot Counter Channel B Register (SLTCTBR)
Table 22-32. SLTCTBR Field Descriptions
Field
Description
SLOTCNTA
Slot Counter Value for Channel B — protocol related variable:
vSlotCounter
for channel B
This field provides the number of the current slot in the current communication cycle.
Base + 0x0038
Additional Reset: RUN Command
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
RATECORR
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 22-27. Rate Correction Value Register (RTCORVR)
Table 22-33. RTCORVR Field Descriptions
Field
Description
RATECORR Rate Correction Value — protocol related variable:
vRateCorrection
(before value limitation and external rate
correction)
This field 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
rate correction value exceeds the limit given by rate_correction_out in the
Protocol Configuration Register 13
, the clock correction reached limit interrupt flag CCL_IF is set in the
Protocol Interrupt Flag Register 0
.
Note: If the controller was not able to calculate a new rate correction term due to a lack of synchronization
frames, the RATECORR value is not updated.
Summary of Contents for PXR4030
Page 1: ...PXR40 Microcontroller Reference Manual Devices Supported PXR4030 PXR4040 PXR40RM Rev 1 06 2011...
Page 30: ...PXR40 Microcontroller Reference Manual Rev 1 Freescale Semiconductor xxx...
Page 40: ...PXR40 Microcontroller Reference Manual Rev 1 xl Freescale Semiconductor...
Page 66: ...Memory Map PXR40 Microcontroller Reference Manual Rev 1 2 4 Freescale Semiconductor...
Page 120: ...Signal Descriptions 3 54 Freescale Semiconductor PXR40 Microcontroller Reference Manual Rev 1...
Page 860: ...FlexCAN Module 24 50 Freescale Semiconductor PXR40 Microcontroller Reference Manual Rev 1...
Page 1167: ...Decimation Filter Freescale Semiconductor 28 53 PXR40 Microcontroller Reference Manual Rev 1...
Page 1168: ...Decimation Filter 28 54 Freescale Semiconductor PXR40 Microcontroller Reference Manual Rev 1...
