PXS20RM Datasheet, PDF (611/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

FlexCAN Module
RXIDA — 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 (2 to 12) are used for frame identification. In the extended frame format, all
bits are used.
RXIDB_0, RXIDB_1 — 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) (2 to 12 and 18 to 28) 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.
RXIDC_0, RXIDC_1, RXIDC_2, RXIDC_3 — 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.
24.3.4 Register descriptions
The FlexCAN registers are described in this section in ascending address order.
24.3.4.1 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. This register can be accessed at any time, however some
fields must be changed only during Freeze Mode. Find more information in the fields descriptions ahead.
Base + 0x0000
0 1 2 3 4 5 6 7 8 9 10 11 12
R
W
NOT_
FRZ_
LPM_
MDIS FRZ
FEN
HALT
RDY
WAK SOFT
_MSK _RST
ACK
SUPV
SLF_
WAK
WRN
_EN
ACK
0
RESET:
Note
1
1
0
1
1
0
0
Note
2
1
0
0
Note
3
0
13 14 15
0 SRX _BCC
_DIS
000
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R
W
0
0
LPRI
O_EN
AEN
0
0
IDAM
00
MAXMB
RESET: 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1
= Unimplemented or Reserved
NOTES:
1 _{Reset value of this bit is different on various platforms. Consult the specific MCU documentation to determine}
its value.
2 _{Different on various platforms, but it is always the opposite of the MDIS reset value.}
3 _{Different on various platforms, but it is always the same as the MDIS reset value.}
Figure 24-5. Module Configuration Register (MCR)
Freescale Semiconductor
PXS20 Microcontroller Reference Manual, Rev. 1
24-11