S I GN U M

S Y S T E M S

16

Passive 20-pin Probe for Cortex ETM trace

ADA-ETM-SWD20

This passive probe provides an interface between the Signum JTAGjet-Trace emulator and the 20-pin high-

density connector on a Cortex target board. The pinout of the probe’s Cortex connector is the same as the

pinout of the ADA-ARM20-SWD probe’s 20-pin connector (Figure 41). The probe’s ETM connector has the

pinout of ETM connector when used with ARM targets (Figure 42).

Ribbon Cable

B

A

L

FIGURE 39 The ADA-ETM-SWD20 probe for Cortex

boards with ETM trace.

FIGURE 40 The dimensions of the ADA-ETM-SWD20 probe.

A = 19.12 mm (0.75 in), B = 3.11 mm (0.122 in), H = 5.1 mm

(0.2 in), W1 = 16.9 mm (0.67), W = 25.7 (1.01 in), L = 65.5 mm

(2.58 in).

SWDIO / TMS

SWCLK / TCK

SWO/EXTa/TRACECTL / TDO

NC/EXTb / TDI

nRESET

TRACECLK

TRACEDATA[0]

TRACEDATA[1]

TRACEDATA[2]

TRACEDATA[3]

VTRef

GND

GND

KEY

GNDDetect

GND/TgtPwr+Cap

GND/TgtPwr+Cap

GND

GND

GND

1

3

5

7

9

11

13

15

17

19

2

4

6

8

10

12

14

16

18

20

NC

NC

TRACECLK

DBGACK (EMU1)

EXTTRIG

Vtref

VSupply (PD)

TRACEPKT[7]

TRACEPKT[6]

TRACEPKT[5]

TRACEPKT[4]

TRACEPKT[3]

TRACEPKT[2]

TRACEPKT[1]

TRACEPKT[0]

TRACESYNC

PIPESTAT[2]

PIPESTAT[1]

PIPESTAT[0]

1

3

5

7

9

11

13

15

17

19

21

23

25

27

29

31

33

35

37

2

4

6

8

10

12

14

16

18

20

22

24

26

28

30

32

34

36

38

NC

NC

GND

DBGRQ (EMU0)

nSRST

TDO

RTCK

TCK

TMS

TDI

nTRST

TRACEPKT[15]

TRACEPKT[14]

TRACEPKT[13]

TRACEPKT[12]

TRACEPKT[11]

TRACEPKT[10]

TRACEPKT[9]

TRACEPKT[8]

FIGURE 41 The Cortex20 pinout of the Cortex side of the

ADA-ETM-SWD20 probe. Top view.

FIGURE 42 The ETM32 pinout of the ETM side of the ADA-

ETM-SWD20 probe. Top view.

Pin 1

38-pin ETM

Connector