Error Warning Limit Register; Table 22-23. Ewlr Register; Table 22-24. Ewlr Register Definitions - Sharp Blue Treak LH75400 User Manual

Controller Area Network

22.3.2.10 Error Warning Limit Register

ELWR is the Error Warning Limit Register. The ELWR Register defines the number of
errors after which an Error Warning Interrupt is generated, if enabled. The EWLR Register
can only be written to in Reset Mode. In Operating Mode, it is Read Only.
Changes made during Reset Mode take effect when the CAN Controller returns to
Operating Mode. The default value of this register after System Reset is 0110000 (i.e., 96).
BIT
FIELD
RESET
RW
BIT
FIELD
RESET
RW
ADDR
BIT
31:8
7:0
22-20

Table 22-23. EWLR Register

31 30 29 28 27
0 0 0 0
R R R R R
15 14 13 12 11
///
0 0 0 0
R R R R R

Table 22-24. EWLR Register Definitions

NAME
Reserved Writing to these bits has no effect. Reading returns 0.
///
Errors Before Interrupt Specifies the number of errors after which an
EWL.7 - EWL.0
error-warning interrupt should be generated.
LH75400/01/10/11 (Preliminary) User's Guide
26 25 24 23
///
0 0 0 0 0
R R R R
10 9 8 7
0 0 0 0 0
R R R R
0xFFFC5000 + 0x34
DESCRIPTION
6/17/03
22 21 20 19 18
0 0 0 0 0
R R R R R
6 5 4 3 2
1 1 0 0 0
R R R R R
17 16
0 0
R R
1 0
0 0
R R