ETAS FETK-T1.1, User Manual, Page: 20 / 82

ETAS Hardware Description
FETK-T1.1 - User Guide 20
The 1000 Mbit/s Ethernet interface provides communication with the ES89x
module.
4.2 ECU Interface
The FETK-T1.1 is connected via connectors CON1, CON2, and CON4 to the ECU
with three adapter cables (refer to Fig.
4 - 2 on page 20). The pin definition
depends on the application and the microcontroller type. In general the ECU
interface consists of
• 1 ECU voltage line, which is not used for FETK power supply, but only for
detection of the ECU status, therefore the power consumption on this
line is negligible (refer to chapter
4.4 on page 22)
• 1 reset line which allows the FETK to control the system reset of the ECU
• 1 reset line which allows the FETK to monitor the system reset of the
ECU
• 5 debug line interfaces for the communication between the FETK-T1.1
and the microcontroller
• 1 differential clock line (100 MHz)
• 1 differential trace lane
• 1 Watchdog disable line
• 1 ground line.
Fig. 4 - 2 Location of the ECU Interfaces DAP (CON1) and Trace (CON2)
FETK Connector Description
CON1 ECU interface (DAP)
CON2 ECU interface (Trace)
CON3 Ethernet interface (ES89x module)
CON4 Power supply
CON1 CON2 CON4