PXD10RM Datasheet, PDF (681/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

Table 18-7. Rx FIFO Structure Field Descriptions
Field
REM
EXT
RXIDA
RXIDB_0,
RXIDB_1
RXIDC_0,
RXIDC_1,
RXIDC_2,
RXIDC_3
Description
Remote Frame
This bit specifies if Remote Frames are accepted into the FIFO if they match the target ID.
1 = Remote Frames can be accepted and data frames are rejected
0 = Remote Frames are rejected and data frames can be accepted
Extended Frame
Specifies whether extended or standard frames are accepted into the FIFO if they match the target
ID.
1 = Extended frames can be accepted and standard frames are rejected
0 = Extended frames are rejected and standard frames can be accepted
Rx Frame Identifier (Format A)
Specifies an ID to be used as acceptance criteria for the FIFO. In the standard frame format, only
the 11 most significant bits (3 to 13)are used for frame identification. In the extended frame format,
all bits are used.
Rx Frame Identifier (Format B)
Specifies an ID to be used as acceptance criteria for the FIFO. In the standard frame format, the 11
most significant bits (a full standard ID) (3 to 13)are used for frame identification. In the extended
frame format, all 14 bits of the field are compared to the 14 most significant bits of the received ID.
Rx Frame Identifier (Format C)
Specifies an ID to be used as acceptance criteria for the FIFO. In both standard and extended frame
formats, all 8 bits of the field are compared to the 8 most significant bits of the received ID.
18.3.4 Register descriptions
The FlexCAN registers are described in this section in ascending address order.
18.3.4.1 Module Configuration Register (MCR)
This register defines global system configurations, such as the module operation mode (e.g., low power)
and maximum message buffer configuration. Most of the fields in this register can be accessed at any time,
except the MAXMB field, which should only be changed while the module is in Freeze Mode.
Freescale Semiconductor
PXD10 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
18-11