Freescale Semiconductor FlexRay MFR4310, Reference Manual

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FlexRay Module (FLEXRAYV4)
MFR4310 Reference Manual, Rev. 2
Freescale Semiconductor 77
3.3.2.8 Protocol Operation Control Register (POCR)
The application uses this register to issue
• protocol control commands
• external clock correction commands
Protocol control commands are issued by writing to the POCCMD field. For more information on protocol
control commands, see
Section 3.7.2, “Protocol Control Command Execution” .
External clock correction commands are issued by writing to the EOC_AP and ERC_AP fields. For more
information on external clock correction, refer to
Section 3.4.11, “External Clock Synchronization” .
0x0014 Write: Normal Mode
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R 0 0 0 0
EOC_AP ERC_AP
BSY 0 0 0
POCCMD
W WME WMC
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 3-7. Protocol Operation Control Register (POCR)
Table 3-15. POCR Field Descriptions
Field Description
15
WME
Write Mode External Correction — This bit controls the write mode of the EOC_AP and ERC_AP fields.
0 Write to EOC_AP and ERC_AP fields on register write.
1 No write to EOC_AP and ERC_AP fields on register write.
11–10
EOC_AP
External Offset Correction Application — This field is used to trigger the application of the external offset
correction value defined in the
Protocol Configuration Register 29 (PCR29) .
00 do not apply external offset correction value
01 reserved
10 subtract external offset correction value
11 add external offset correction value
9–8
ERC_AP
External Rate Correction Application — This field is used to trigger application of the external rate correction
value defined in the
Protocol Configuration Register 21 (PCR21)
00 do not apply external rate correction value
01 reserved
10 subtract external rate correction value
11 add external rate correction value