CAN Controller
UG0331 User Guide Revision 15.0
453
0x014
R/W
0
The CAN controller can be used in different
operating modes. By disabling transmitting
data, it is possible to use the CAN in
Listen-only mode, enabling features such as
automatic bit rate detection. Before starting
the CAN controller, all the CAN configuration
registers have to be set according to the
target application.
0x020
R/W
0
Transmit Message0 buffer control and
command register
0x024
R/W
0
Transmit Message0 buffer identifier register
0x028
R/W
0
Transmit Message0 buffer data high register
0x02C
R/W
0
Transmit Message0 buffer data low register
0x0C
R
0
Transmit (TX) message buffer status.
This bundles transmit request (TxReq)
pending flags from all 32 receive message
buffers.
0x220
R/W
0
Receive Message0 buffer command and
control register
0x224
R/W
0
Receive Message0 buffer Identifier register
0x228
R/W
0
Receive Message0 buffer data high register
0x22C
R/W
0
Receive Message0 buffer data low register
0x230
R/W
0
Acceptance mask register (AMR)
The AMR register defines whether the
incoming bit is checked against the ACR
register
0x234
R/W
0
Acceptance code register (ACR)
0x238
R/W
0
AMR- Data
0x23C
R/W
0
ACR- Data
0x08
R
0
Receive (RX) message buffer status. This
bundles message available (MsgAv) flags
from all 32 receive message buffers.
0x01C
RW
0
Error capture register
Can be used to perform additional CAN bus
diagnostics
0x010
R
0
CAN error status indicator register
Provides visibility into CAN controller error
state, receive error count, and transmit error
count. Special flags to report error counter
values equal to or in excess of 96 errors are
available to indicate heavily disturbed bus
situations.
0x004
R/W
0
Interrupt enable register
Writing 1 to a particular bit enables the
corresponding interrupt source as set in
INT_STATUS.
Table 441 •
Summary of CAN Controller Registers
(continued)
Register Name
Address R/W
Reset Value Description
Содержание SmartFusion2 MSS
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