ETK-S21.1 - User’s Guide
17
ETAS
Hardware Description
The ETK-S21.1 is connected via CON1 and CON2 to the ECU with two adapter
cables (refer to Fig. 4-2 on page 17). The pin definition depends on the applica-
tion and the microcontroller type. In general the ECU interface consists of
• 1 ECU voltage line, which is not used for ETK power supply but only for
detection of the ECU status, therefore the power consumption on these
line is negligible (refer to chapter 4.5 on page 19)
• 1 Reset line to control the system reset
• 1 Reset line to detect e.g. a Softreset
• 7 Debug Interface lines for the communication between the ETK-S21.1
and the microcontroller
• 2 ground lines for a proper shielding of the ECU interface lines.
Fig. 4-2
Location of the ECU Interfaces (ETK-S21.1)
4.3
Serial ETK Interface
The interface utilizes a 100Base-TX transmission to achieve a transmission perfor-
mance of 100 Mbit/s.
Fig. 4-3
Location of the Serial ETK Interface (ETK-S21.1)
Note
To ensure stable communication only 100 Mbit cables delivered by ETAS shall
be used.
CON2
CON1
CON4