NXP Semiconductors MPC5644A, Reference Manual, Page: 1493 / 1735

FlexRay Communication Controller (FlexRay)
MPC5644A Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor 1493
Each of these six registers holds one part of the Network Management Vector. The length of the Network
Management Vector is configured in the
Network Management Vector Length Register (FR_NMVLR) . If
FR_NMVLR is programmed with a value that is less than 12 bytes, the remaining bytes of the Network
Management Vector Registers (FR_NMVR0–FR_NMVR5) , which are not used for the Network
Management Vector accumulating, will remain 0.
The NMVR provides accrued information over all received NMVs in the last communication cycle. All
NMVs received in one cycle are ORed into the NMVR. The NMVR is updated at the end of the
communication cycle.
33.5.2.40 Network Management Vector Length Register (FR_NMVLR)
This register defines the length of the network management vector in bytes.
Table 33-44. NMVR[0:5] field description
Field Description
NMVP Network Management Vector Part — The mapping between the Network Management Vector
Registers (FR_NMVR0–FR_NMVR5) and the receive message buffer payload bytes in NMV[0:11] is
depicted in Table 33-45 .
Table 33-45. Mapping of NMVRn to the received payload bytes NMVn
NMVRn register NMVn received payload
FR_NMVR0[NMVP[15:8]] NMV0
FR_NMVR0[NMVP[7:0]] NMV1
FR_NMVR1[NMVP[15:8]] NMV2
FR_NMVR1[NMVP[7:0]] NMV3
...
FR_NMVR5[NMVP[15:8]] NMV10
FR_NMVR5[NMVP[7:0]] NMV11
Base + 0x0058 Write: POC:config
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R 0 0 0 0 0 0 0 0 0 0 0 0
NMVL
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 33-40. Network Management Vector Length Register (FR_NMVLR)
Table 33-46. FR_NMVLR field description
Field Description
NMVL Network Management Vector Length — protocol related variable:
gNetworkManagementVectorLength
This field defines the length of the Network Management Vector in bytes. Legal values are between 0
and 12.