OPTIREG™ SBC TLE9274QXV33
Serial Peripheral Interface
Field
Bits
Type
Description
BOOST_V
2
rw
Boost voltage selection
0B
1B
, Boost voltage depends of the BOOST_VH setting
, Boost voltage 6.65 V typical
BOOST_EN
CFG2
1
0
rw
rw
Boost converter enable
0B
1B
, Boost off
, Boost enabled, automatic switch ON for VS voltage lower
than VBST,THx
Configuration select 2
0B
, Fail outputs (FOx) are active after 2nd watchdog trigger fail
Config 3
1B
, Fail outputs (FOx) are active after 1st watchdog trigger fail
Config 1
Note:
WD_CTRL
Watchdog control (Address 000 0011B)
POR / Soft Reset Value: 0001 0100B;
Restart Value: x00x x100B
7
6
5
4
3
2
1
0
WD_STM_
EN_0
WD_EN_WK_
BUS
CHECKSUM
WD_WIN
MAX_3_RST WD_TIMER_2 WD_TIMER_1 WD_TIMER_0
r
w
rwh
rw
rwh
rw
rwh
rwh
rwh
Field
Bits
Type
Description
CHECKSUM
7
w
Checksum bit
The sum of bit 7...0 needs to be even. Otherwise the bit SPI_FAIL is
set and the command ignored.
This bit will always read as ‘0’.
0B
1B
, Counts as 0 for checksum calculation
, Counts as 1 for checksum calculation
WD_STM_
EN_0
6
5
4
rwh
rw
Watchdog activation during SBC Stop mode
0B
1B
, Watchdog is active in SBC Stop mode
, Watchdog is deactivated in SBC Stop mode
WD_WIN
Watchdog window time-out feature enabled
0B
1B
, Watchdog works as time-out Watchdog
, Watchdog works as Window Watchdog
WD_EN_WK
_BUS
rwh
Enable the watchdog after transceiver (CAN/LIN) wake-up in
SBC Stop mode
0B
, Watchdog will not start after a CAN/LIN1/LIN2/LIN3/LIN4
wake
1B
, Watchdog starts with a long open window after
CAN/LIN1/LIN2/LIN3/LIN4 wake
Datasheet
103
Rev.2.0
2022-05-06
INFINEON [ Infineon ]
