Data Sheet
155
Rev. 1.00
2017-07-31
TLE9262BQXV33
Serial Peripheral Interface
Notes
1. The bits
DEV_STAT
show the status of the device before it went through Restart. Either the device came from
regular Sleep Mode (‘10’) or a failure (‘01’ - SBC Restart or SBC Fail-Safe Mode: WD fail, TSD2 fail, VCC_UV fail
or VCC1_OV if bit
VCC1_OV_RST
is set) occurred. Failure is also an illegal command from SBC Stop to SBC
Sleep Mode or going to SBC Sleep Mode without activation of any wake source. Coming from SBC Sleep Mode
(‘10’) will also be shown if there was a trial to enter SBC Sleep Mode without having cleared all wake flags
before.
2. The
WD_FAIL
bits are configured as a counter and are the only status bits, which are cleared automatically
by the SBC. They are cleared after a successful watchdog trigger and when the watchdog is stopped (also in
SBC Sleep and Fail-Safe Mode unless it was reached due to a watchdog failure). See also
Chapter 14.1
.
3. The SPI_FAIL bit is cleared only by SPI command
4. In case of Config 2/4 the WD_Fail counter is frozen in case of WD trigger failure until a successful WD trigger.
5. If CFG = ‘0’ then a 1st watchdog failure will not trigger the FO outputs or the FAILURE bit but only force the SBC
into SBC Restart Mode.
DEV_STAT
Device Information Status (Address 100 0011
B
)
POR / Soft Reset Value: 0000 0000
B
;
Restart Value: xx00 xxxx
B
7
6
5
4
3
2
1
0
DEV_STAT_1 DEV_STAT_0
Reserved
Reserved
WD_FAIL_1
WD_FAIL_0
SPI_FAIL
FAILURE
r
rc
rc
r
r
rh
rh
rc
rc
Field
Bits
Type
Description
DEV_STAT
7:6
rc
Device Status before Restart Mode
00B , Cleared (Register must be actively cleared)
01B , Restart due to failure (WD fail, TSD2, VCC1_UV); also after a
wake from Fail-Safe Mode
10B , Sleep Mode
11B , Reserved
Reserved
5:4
r
Reserved, always reads as 0
WD_FAIL
3:2
rh
Number of WD-Failure Events (1/2 WD failures depending on
CFG
)
00B , No WD Fail
01B , 1x WD Fail, FOx activation - Config 2 selected
10B , 2x WD Fail, FOx activation - Config 1 / 3 / 4 selected
11B , Reserved (never reached)
SPI_FAIL
1
rc
SPI Fail Information
0B , No SPI fail
1B , Invalid SPI command detected
FAILURE
0
rc
Activation of Fail Output FO
0B , No Failure
1B , Failure occurred
