SIGNUM SYSTEMS
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
H
B
A
W1
L
W
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.
