Freescale Semiconductor FlexRay MFR4310 - Figure 3-7. Protocol Operation Control Register (POCR); Table 3-15. POCR Field Descriptions

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
1514131211109876543210
R0000
EOC_AP ERC_AP
BSY 0 0 0
POCCMD
WWME
WMC
Reset0000000000000000
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