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CP3SP33SMS/NOPB Datasheet(PDF) 207 Page - Texas Instruments |
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CP3SP33SMS/NOPB Datasheet(HTML) 207 Page - Texas Instruments |
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207 / 407 page ![]() CP3SP33 www.ti.com SNOSCW5 – MAY 2013 IRQ/IST The IRQ bit and IST field indicate the interrupt source of the highest priority interrupt currently pending and enabled in the CICENn register. Table 22-18 shows the several interrupt codes when the encoding for all interrupt sources is enabled (CICEN = FFFFh). Table 22-18. Highest Priority Interrupt Code IRQ IST3:0 CAN Interrupt Request 0 0000 No interrupt request 1 0000 Error interrupt 1 0001 Buffer 0 1 0010 Buffer 1 1 0011 Buffer 2 1 0100 Buffer 3 1 0101 Buffer 4 1 0110 Buffer 5 1 0111 Buffer 6 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 22.10.15 CAN Error Counter Register n (CANECn) The CANECn register reports the values of the CAN Receive Error Counter and the CAN Transmit Error Counter. 15 8M M7 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. 22.10.16 CAN Error Diagnostic Register n (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 APB bus master has read-only access to this register, and all bits are cleared on reset. 15 14 13 12 11 10 9 4 3 0 Reserved DRIVE MON CRC STUFF TXE EBID EFID 0 R Copyright © 2013, Texas Instruments Incorporated Dual CAN Interfaces 207 Submit Documentation Feedback Product Folder Links :CP3SP33 |
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