Hardware specifications

Ambient Conditions

Item

Characteristics

Operating temperature range

- 40 °C to +110 °C

- 40 °F to +230 °F

Storage temperature range(without packaging)

0 °C to +50 °C

+32°F to +122 °F

Max. relative humidity
(non-condensing)

95%

Max. altitude

max. 5000 m/ 16400 ft

Degree of contamination
(IEC 60664-1, IEC 61010-1)

2

Protection rating (IEC 60529)

Determined by installation in ECU

Inside the ECU housing the max. temperature is specified with 110 °C, still air. Outside of the ECU the max. ambient temperature is assumed to be 85 °C at 1 m/s airflow. The power dissipation of the M-ETK is typically 5 Watt.

T ambiente ( °C )

Minimum Rth Heatspreader Ambient [ K/W ]

70

9,15

75

8,09

80

7,02

85

5,96

90

4,89

95

3,83

100

2,77

105

1,70

110

0,64

Power Supply Specs

Parameter

Symbol

Condition

Min

Typ

Max

Unit

Permanent power supply

(vehicle battery)

UBatt

Vehicle usage 1)

6

12

36

V

[all values ±0%]

Cranking voltage

UBatt

< 3 seconds

3

 

 

V

Standby current

ISTBY

UBatt = 12 V; ECU off;

no load from ECU;

T = 20 °C

8

24

40

mA

Operating current

IBatt

UBatt = 12 V;

no load from ECU;

T = 20 °C

150

250

350

mA

Power dissipation

PBatt

UBatt = 12 V;
I=0mA at pin VDDSTBY ECU_SBRAM;
T = 20 °C

1.8

3

4.2

W

Power dissipation

PBatt

UBatt = 12 V;

I = 500 mA at pin VDDSTBY;

I = 80 mA at pin VDDPSTBY;

T = 20 °C

2.8

4

5.2

W

Fuse in the ETK Ubatt supply line.

Only required if the power supply or ECU is not protected accordingly.

MINI, 2 A 58 V DC

(Littelfuse 0997002.WXN)

Overvoltage category
(AC mains supply)

 

 II        

1) The M-ETK implements reverse voltage protection in the same range and may be used only with central load dump protection.

   24 V vehicles require UBatt disturbing pulse reduction to 12 V vehicle system.

   12 V vehicles don’t require special disturbing pulse reductions.

Note  

The M-ETK will accept power supply voltage dips (for additional details of 3 V low voltage operation, see ISO standard 16750).
Maximum Inrush Current

It is highly recommended that the M-ETK be connected to a permanent power supply. When this is not possible, or the M-ETK must be powered off and back on in short intervals, time is required to reactivate the inrush limiting circuit of the M-ETK.

If the time between powering the ETK off and on is less than 40 seconds a high current peak can occur. If the above-mentioned fuse is used, this inrush current will not trigger the fuse. If other protection mechanisms are in place, the inrush current must be considered in the ECU design.

Time Between Powering Off and On

Inrush Current Pulse ( UBatt = 12 V)

> 40 s

700 mA / 5 ms

< 40 s

18 A / 60 µs

Power Supply Pin Assignment

Pin

Signal

Direction

Comment

1

VDDSTBY
(3.3 V supply)

Output

Permanent power supply of ECU DAP Interface, 3.3 V

2

VDDPSTBY

(1.30 V supply)

Output

Permanent power supply of ECU EDRAM, 1.30 V

3

GND

Input

Power Ground

4

CAL_WAKEUP

Output

Switch to Ubatt. ECU wake-up signal
(for measurement preparation)

5

Ubatt2

Input

Vehicle battery

6

Ubatt1

Input

Vehicle battery

Microcontroller Interface (adapter dependent)

Parameter

Symbol

Condition

Min

Typ

Max

Unit

ECU Standby RAM Output Voltage

VDDSTBY

max 500 mA load

0.94

1

1.04

V

VDDPSTBY
Output Voltage

VDDPSTBY

max 80 mA load

3.14

3.3

3.46

V

Cal_Wakeup
Output Voltage

CAL_WAKEUP

UBatt = 6 - 36 V;
load = 0 - 50 mA

UBatt-1V

 

UBatt

V

ECU Power Supply Supervision Voltage

VDDP

 

ECU on

2.67

2.77

2.89

V

ECU off

2.44

2.56

2.89

V

abs. max.

 

 

5.50

 

IDDP

VDDP 3.3 V

 

 

800

mA

ECU Standby RAM Supervision Voltage

VDDSTBY /VDDSTBY_SENSE

IDDSTBY

VDDSTBY ­

0.86

0.89

0.92

V

VDDSTBY ¯

0.85

0.88

0.91

V

VDDSTBY 1.0 V

 

 

50

mA

 

Test Characteristics

Parameter

Symbol

Condition

Min

Typ

Max

Unit

Start Up Time 1 1)

tReset1

UBatt = 12 V
VDDP = 0 V ­ 3.3 V/5.0 V
without transferring FPGA

0

5

10

ms

Start Up Time 2 1)

tReset2

UBatt = 0 V ­ 12 V
transfer
BOO FPGA+SoC

 

20

 

s


1) PORESET is not pulled low during M-ETK start up time.

Automotive Ethernet Interface

Item

Characteristics

Connection

Automotive Ethernet 1000 Base-T1

Protocol

XCP on TCP/IP or UDP/IP

IP address

Dynamic (standard, for INCA) or

Static (e.g. for Rapid Prototyping) by using the M-ETK Configuration Tool (default IP address: 192.168.40.14)

Cable length

max. 8 m

Ethernet Interface

DC decoupling

Max. Isolation Voltage 60 V DC, according IEC 61010-1 ("Limit values for accessible parts" in normal, dry condition)

Note  

The Automotive Ethernet interface is not compatible with the standard Ethernet interface of ETAS modules. A 1000 Base-T1 Automotive Ethernet Media Converter is needed to connect the M-ETK + M-ETK-AB1.0 to the PC.

SWD Timing Characteristics

The M-ETK supports the 2-pin SWD mode: one data pin (direction via protocol), one clock pin.

Parameter

Symbol

Value SR6X7[ns]

Value SR6P7 [ns]

Comment

SWCLK Clock Period (typ.)

tCLK

14.31)

8.02)

ETK --> Target

SWDIO Set-Up Time

tSU

4.0

2.3

ETK --> Target

SWDIO Hold Time

tH

1.5

2.3

ETK --> Target

SWDIO Clock-to-Out Time

tCO

12.4

11.5

Target --> ETK

SWDIO Output Hold Time

tOH

4.3

3

Target --> ETK

SWDIO data unstable window

 

 

3

 

1) : @ 70 MHz SWD Clock Frequency

2): @ 125 MHz SWD Clock Frequency

 

 

Aurora Trace Timing Parameter

Parameter

Value

Unit

Signal Impedance [Ohm]

Clock

100

MHz

100 (differential)

Data rate DATA[3...0]

(max)

3.125

Gbit/s

100 (differential)

Electrical Characteristics

ECU Interface Connector SWD Interface

Signal

Pin Type

VOL

(max)

[V]

VOH

(min)

[V]

VOH

(max)

[V]

VIL

(max) [

V]

VIH

(min)

[V]

VIH

(max)

[V]

Leakage current

(min) / (max)

[mA]

Additional load by ETK 1) (typ) [pF]

SWCLK (TCK)

XO1)

0.4

2.8

3.3

-

-

5.5

+705 / +495

35

SWDIO (TMS)

IXO1)

0.4

2.8

3.3

0.8

2

5.5

-43 / -18

35

RESERVED (TDO)

IXO1)

0.4

2.8

3.3

0.8

2

5.5

+10 / -10

35

RESERVED (TDI)

XO1)

0.4

2.8

3.3

-

2

5.5

+10 / -10

35

/TRST

XO2)

0.6

2.4

3.3

-

-

5.5

-705 / -569

21

/RESETOUT

IXOD3)

0.7

-

-

0.8

2

5.5

+21 / -20

21

/PORESET

IXOD3)

0.7

-

-

0.8

2

5.5

+21 / -20

25

WDGDIS

XO2))

0.5

2.4

3.3

-

-

5.5

+10 / -10

21

Pin Type:
I: Input, X: Tristate, O: Output, OD: Open Drain

 

1) max 16mA
2) max 24 mA
3) max 0.2 A

ECU Interface Connector JTAG Interface

Signal

Pin Type

VOL

(max)

[V]

VOH

(min)

[V]

VOH

(max)

[V]

VIL

(max) [

V]

VIH

(min)

[V]

VIH

(max)

[V]

Leakage current

(min) / (max)

[mA]

Additional load by ETK 1) (typ) [pF]

SWCLK (TCK)

XO1)

0.4

2.8

3.3

-

-

5.5

+705 / +495

35

SWDIO (TMS)

IXO1)

0.4

2.8

3.3

0.8

2

5.5

-43 / -18

35

RESERVED (TDO)

IXO1)

0.4

2.8

3.3

0.8

2

5.5

+10 / -10

35

RESERVED (TDI)

XO1)

0.4

2.8

3.3

-

2

5.5

+10 / -10

35

/TRST

XO2)

0.6

2.4

3.3

-

-

5.5

-705 / -569

21

/RESETOUT

IXOD3)

0.7

-

-

0.8

2

5.5

+21 / -20

21

/PORESET

IXOD3)

0.7

-

-

0.8

2

5.5

+21 / -20

25

WDGDIS

XO2))

0.5

2.4

3.3

-

-

5.5

+10 / -10

21

Pin Type:
I: Input, X: Tristate, O: Output, OD: Open Drain

 

1) max 16mA
2) max 24 mA
3) max 0.2 A

ECU Interface Connector Pin Assignment

Pin

JTAG Mode

SWD Mode

Direction

Comment

1

GND

GND

Power

Signal Ground

2

TCK

SWCLK

Output

depending interface mode

3

/TRST

/TRST

Output

depending interface mode

4

TDO

RESERVED(TDO)

Bidir

depending interface mode

5

TMS

SWDIO

Bidir

depending interface mode

6

TDI

RESERVED(TDI)

Bidir

depending interface mode

7

WDGDIS

WDGDIS

Output

Watchdog disable Signal

8

VDDP (Sense)

VDDP (Sense)

Input

Sense for Switched power supply of ECU (ignition)

9

/RESETOUT

/RESETOUT

Bidir

ECU Reset signal (open drain) for Reset assertion and supervision

10

/PORESET

/PORESET

Bidir

ECU Power On Reset signal (open drain) for Reset assertion and supervision

ECU Interface Connector Aurora Trace

Signal

Pin Type

VID (min) [mV]

VID (max) [mV]

VOD (max) [mV]

Clock-P/-N

XO

-

-

490

DATA[3...0]

I

140

1250

-

Pin type:
I: Input, X: Tristate, O: Output, OD: Open Drain

Signal

Pin Type

VOL

(max)

[V]

VOH

(min)

[V]

VOH (max)

[V]

VIL

(max)

[V]

VIH

(min)

[V]

VIH

(max)

[V]

Leakage current

(min / max)

[mA]

Additional load by ETK 1) (typ)

[pF]

AUR_RESERVED

XO 1)

0.6

2.4

3.1

-

-

6.5

+159 / +99

24

Pin Type:
I: Input, X: Tristate, O: Output, OD: Open Drain

1) max 24 mA

ECU Interface Connector Aurora Trace Pin Assignment

Pin

Signal

Direction

Comment

1

GND

-

Signal Ground

2

GND

-

Signal Ground

3

Data1-N

Input

Aurora Data Lane 1

4

Data0-P

Input

Aurora Data Lane 0

5

Data1-P

Input

Aurora Data Lane 1

6

Data0-N

Input

Aurora Data Lane 0

7

GND

-

Signal Ground

8

GND

-

Signal Ground

9

Data2-P

Input

Aurora Data Lane 2

10

GND

-

Signal Ground

11

Data2-N

Input

Aurora Data Lane 2

12

Clock-N

Output

Aurora Clock

13

GND

-

Signal Ground

14

Clock-P

Output

Aurora Clock

15

Data3-N

Input

Aurora Data Lane 3

16

GND

-

Signal Ground

17

Data3-P

Input

Aurora Data Lane 3

18

-

-

not connected

19

GND

-

Signal Ground

20

AUR_Reserved

Output

do not use

Mechanical Dimensions and weight

The reference measure for all drawings is millimeters.

Item

Dimension

[Millimeters]

Dimension

[Inches]

Length

45.00

1.77

Width

42.00

1.65

Height

10.85

0.43

Hole/Drilling Pattern for the ECU-housing

Four screws M2

Recommended drilling diameter for the M2 screws is 2.2 mm.

Dimension [mm]

Tolerance [mm]

Dimension [in]

Tolerance [in]

23

+/- 0.20

 0.91 0.07874

28

+/- 0.20

 1.11 0.07874

39

+/- 0.20

 1.54 0.07874

 

Weight

Item

Weight [g]

M-ETK-T1 (incl Heatspreader)

30

M-ETK-AB1.0

10

Total

40