Register 6: CAN Test (CANTST), offset 0x014
This register is used for self-test and external pin access. It is write-enabled by setting the TEST bit
in the CANCTL register. Different test functions may be combined, however, CAN transfers are
affected if the TX bits in this register are not zero.
CAN Test (CANTST)
CAN0 base: 0x4004.0000
CAN1 base: 0x4004.1000
Offset 0x014
Type RW, reset 0x0000.0000
16171819202122232425262728293031
reserved
ROROROROROROROROROROROROROROROROType
0000000000000000Reset
0123456789101112131415
reservedBASICSILENTLBACKTXRXreserved
RORORWRWRWRWRWROROROROROROROROROType
0000000000000000Reset
DescriptionResetTypeNameBit/Field
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0x0000.00ROreserved31:8
Receive Observation
DescriptionValue
The CANnRx pin is low.0
The CANnRx pin is high.1
0RORX7
Transmit Control
Overrides control of the CANnTx pin.
DescriptionValue
CAN Module Control
CANnTx is controlled by the CAN module; default
operation
0x0
Sample Point
The sample point is driven on the CANnTx signal. This
mode is useful to monitor bit timing.
0x1
Driven Low
CANnTx drives a low value. This mode is useful for
checking the physical layer of the CAN bus.
0x2
Driven High
CANnTx drives a high value. This mode is useful for
checking the physical layer of the CAN bus.
0x3
0x0RWTX6:5
June 18, 20141386
Texas Instruments-Production Data
Controller Area Network (CAN) Module
To Next Page
Loading...
Need help?
General
