Freescale Semiconductor FlexRay MFR4310 - Register Descriptions; Table 3-4. Register Access Conventions

FlexRay Module (FLEXRAYV4)
MFR4310 Reference Manual, Rev. 2
68 Freescale Semiconductor
3.3.2 Register Descriptions
This section provides detailed descriptions of all registers in ascending address order, presented as 16-bit
wide entities.
Table 3-4 provides a key for the register figures and register tables.
3.3.2.1 Register Reset
All registers except the Message Buffer Cycle Counter Filter Registers (MBCCFRn), Message Buffer
Frame ID Registers (MBFIDRn), and Message Buffer Index Registers (MBIDXRn) are reset to their reset
value on system reset. The registers mentioned above are located in physical memory blocks and, thus,
they are not affected by reset. For some register fields, additional reset conditions exist. These additional
reset conditions are mentioned in the detailed description of the register. The additional reset conditions
are explained in Table 3-5.
0x00A0
...
0x00DC
Protocol Configuration Register 0 (PCR0)
...
Protocol Configuration Register 30 (PCR30)
R/W
–
R/W
0x00DE
...
0x00FE
Reserved R
Message Buffers Configuration, Control, Status
0x0100 Message Buffer Configuration, Control, Status Register 0 (MBCCSR0) R/W
0x0102 Message Buffer Cycle Counter Filter Register 0 (MBCCFR0) R/W
0x0104 Message Buffer Frame ID Register 0 (MBFIDR0) R/W
0x0106 Message Buffer Index Register 0 (MBIDXR0) R/W
... ... ...
0x04F8 Message Buffer Configuration, Control, Status Register 127 (MBCCSR127) R/W
0x04FA Message Buffer Cycle Counter Filter Register 127 (MBCCFR127) R/W
0x04FC Message Buffer Frame ID Register 127 (MBFIDR127) R/W
0x04FE Message Buffer Index Register 127 (MBIDXR127) R/W
Table 3-4. Register Access Conventions
Convention Description
The shaded field indicates that the bit or field is not writeable.
R* The R* item indicates a reserved bit or field. The FlexRay module does not change its value. The application must
not write any value different from the reset value to this bit or field.
Reset Value
0 Resets to zero.
1 Resets to one.
– Not defined after reset and not affected by reset.
Table 3-3. FlexRay Memory Map (Continued)
Address Register Access