XETK-S4.2 - User’s Guide
44
ETAS
Technical Data
7.10.2
Interface and Power Supply Connector CON7
Pin
Signal
Direc-
tion
Comment
1
UBATT
In
Power supply (permanent)
2
CAL Wakeup Out
Wakeup functionality (12 V output)
1)
3
GND
-
Ground
4
VDDSBRAM,
opt. SENSE
Out
Backup voltage (1.3 V) of ECU standby RAM
provided by the XETK, optional additional
sense
2)
5
/HDRST
In
ECU reset signal for reset detection
6
DAI1,
opt. SENSE
Bidir
GPIO pin for startup communication and trig-
gering, optional additional sense
3)
7
DAI2
Bidir
GPIO pin for startup communication and trig-
gering
1)
: if not implemented, do not connect
2)
: SENSE: Pin 4 configured to supply and sense the VDDSBRAM voltage
3)
: SENSE: Pin 4 or pin 6 configured to supervise ECU standby RAM by the XETK
to detect data consistency