Lantronix DSTni-EX manual 62. Error Capture Register, 63. Error Capture Register Definitions

Error Capture Register

The Error Capture register captures the most recent error event with the frame reference pointer, rx- and tx-mode and the associated error code.

Table 5-62. Error Capture Register

BIT	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OFFSET								78h
FIELD
	ERR2	ERR1	ERR0	FR4	FR3	FR2	FR1	FR0	TX_MOD	RX_MOD	FRB5	FRB4	FRB3	FRB2	FRB1	FRB0
RESET	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W

	Table 5-63. Error Capture Register Definitions
Bits	Field Name	Description
15:13	Err[2:0]	Error_code
		000 = no error (default)
		001 = crc_err
		010 = form_err
		011 = ack_err
		100 = stuff_err
		101 = bit_err
12:8	FR[4:0]	frame_ref_Field
		This is the frame reference a incoming or outgoing CAN message.
		Values are:
		00000	= stopped
		00001	= synchronize
		00101	= interframe
		00110	= bus_idle
		00111	= start_of_frame
		01000	= arbitration
		01001	= control
		01010= data
		01011	= crc
		01100	= ack
		01101	= end_of_frame
		10000	= error_flag
		10001	= error_echo
		10010	= error_del:
		11000	= overload_flag
		11001	= overload_echo
		11010	= overload_del
		Other codes are not used.
7	TX_MOD	TX Mode
		1 = transmitting data.
		0 = not in TX mode (receiving or idle).
6	RX_MOD	RX Mode
		1 = receiving data.
		0 = not in RX mode (transmitting or idle).
5:0	FRB[5:0]	frame_ref_bit_nr
		A 6-bit vector that counts the bit numbers in one field.
		Example: if field = “data” = “01010”, “bit_nr” = “000000”, and
		“tx_mode” = ‘1’, it indicates that the first data bit is being
		transmitted.

82