Datasheet

TLE6251-3G
Diagnosis-Flags at NERR and RxD
Data Sheet 23 Rev. 1.1, 2011-06-06
8 Diagnosis-Flags at NERR and RxD
Table 3 Truth Table
NSTB EN INH Mode Event NERR RxD
1 1 High Normal No CAN bus failure
1)
1) Only valid after at least four recessive to dominant edges at TxD when entering the Normal Operation mode.
1 “Low”: bus
dominant,
“High”: bus
recessive
CAN bus failure
1)
0
Wake-up via CAN bus/no wake-up
request detected
2)
2) Only valid before four recessive to dominant edges at TxD when entering the Normal Operation mode.
1
Wake-up via pin WK
3)
3) Only valid before four recessive to dominant edges at TxD when entering the Normal Operation mode.
0
1 0 High Receive
Only
No
V
S
fail detected
4)
4) Power-Up flag only available, if V
CC
and V
IO
are active. Power-Up flag will be cleared when entering Normal Operation
mode.
1 “Low”: bus
dominant,
“High”: bus
recessive
V
S
fail detected
4)
0
No TxD time-out,
Over-Temperature event,
RxD recessive clamping or
bus dominant time out
detected
5)
5) Valid after a transition from Normal Operation mode.
1
TxD time-out,
Over-Temperature event,
RxD recessive clamping or
bus dominant time out
detected
5)
0
0 0 High Stand-By Wake-up request detected
6)
6) Only valid if V
CC
and V
IO
are active.
00
No Wake up request detected
6)
11
0 0 Floating Sleep Wake-up request detected
6)
00
No wake-up request detected
6)
11