Allwinner A20 - Page 796

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 796 / 812
6.16.5.7. CAN TX ERROR WARNING LIMIT REGISTER
Offset: 0x18
Register Name:
CAN_EWL_REG
Default Value: 0x0000_0060
Bit
Read/Write
Default
Description
31:8
/
/
/
7:0
R/W
0x60
ERR_WRN_LMT
Error Warning Limit
These bits define the number of errors after which an Error
Warning Interrupt should be generated (if enabled).
These bits are only writable in reset mode.
6.16.5.8. CAN ERROR COUNTER REGISTER
Offset: 0x1C
Register Name:
CAN_REC_REG
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:24
/
/
/
23:16
R/W
0
RX_ERR_CNT
Receive Error Counter
These bits record the current value of receive counter
These bits are only writable in reset mode.
15:8
/
/
/
7:0
R/W
0
TX_ERR_CNT
Transmit Error Counter
These bits record the current value of transmit counter
These bits are only writable in reset mode.
6.16.5.9. CAN RECEIVE MESSAGE REGISTER
Offset: 0x20
Register Name:
CAN_RMSGC_REG
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:8
/
/
/
7:0
R
0
RX_MSG_CNT
CAN receive message counter