CP3BT23_14 Datasheet, PDF (162/324 Pages) Texas Instruments – CP3BT23 Reprogrammable Connectivity Processor with Bluetooth and Dual CAN Interfaces

CP3BT23
SNOSCX3A – JULY 2013 – REVISED JANUARY 2014
www.ti.com
Table 18-19. Highest Priority Interrupt Code (continued)
IRQ
IST3:0
CAN Interrupt Request
1
1000
Buffer 7
1
1001
Buffer 8
1
1010
Buffer 9
1
1011
Buffer 10
1
1100
Buffer 11
1
1101
Buffer 12
1
1110
Buffer 13
1
1111
Buffer 14
18.10.15 CAN Error Counter Register (CANEC)
The CANECn register reports the values of the CAN Receive Error Counter and the CAN Transmit Error
Counter.
15
8
7
0
REC
TEC
0
R
REC The CAN Receive Error Counter field reports the value of the receive error counter.
TEC The CAN Transmit Error Counter field reports the value of the transmit error counter.
18.10.16 CAN Error Diagnostic Register (CEDIAGn)
The CEDIAGn register reports information about the last detected error. The CAN module identifies the
field within the CAN frame format in which the error occurred, and it identifies the bit number of the
erroneous bit within the frame field. The CPU bus master has read-only access to this register, and all bits
are cleared on reset.
15
14
13
12
11
10
9
Res. DRIVE MON CRC STUF TXE
F
EBID
0
R
4
3
0
EFID
EFID
The Error Field Identifier field identifies the frame field in which the last error occurred. The
encoding of the frame fields is shown in Table 18-20.
162 CAN Module
EFID3:0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
Table 18-20. Error Field Identifier
Field
ERROR
ERROR DEL
ERROR ECHO
BUS IDLE
ACK
EOF
INTERMISSION
SUSPEND TRANSMISSION
SOF
ARBITRATION
IDE
Submit Documentation Feedback
Product Folder Links: CP3BT23
Copyright © 2013–2014, Texas Instruments Incorporated