ETAS
Hardware Description
XETK-S22.0 - User’s Guide
19
4.2
ECU Interface
The XETK-S22.0 is connected via connectors CON1 and CON4 to the ECU with
two adapter cables (refer to Fig. 4-3 on page 19). The pin definition depends on
the application and the microcontroller type. In general the ECU interface con-
sists of
• 1 ECU voltage line, which is not used for XETK power supply, but only for
detection of the ECU status, therefore the power consumption on this
line is negligible (refer to chapter 4.5 on page 21)
• 1 Reset line which allows the XETK to control the system reset of the
ECU
• 1 Reset line which allows the XETK to monitor the system reset of the
ECU
• 5 JTAG Debug line interfaces for the communication between the XETK-
S22.0 and the microcontroller
• 1 differential Aurora Data lane
• 1 differential Aurora Clock
• 1 Watchdog timer disable line
• 7 ground lines for proper shielding of the ECU interface lines
Fig. 4-3
Location of the ECU Interface Connectors
CON1
CON4
