EZR32WG-868MHZ Datasheet, PDF (18/29 Pages) Silicon Laboratories – Packet Trace Interface support

EZR32WG 868MHz Wireless Starter Kit
Connectors
9.2 Debug Connector (DBG)
This connector is used for Debug In and Debug Out (see chapter on Debugging). The pinout is described in Table 9.1 Debug Connec-
tor Pinout on page 15.
VTARGET 1
GND3
GND 5
NC
Cable Detect 9
NC 11
NC 13
GND 15
GND 17
GND 19
2 SWDIO / TMS
4 SWCLK / TCK
6 SWO / TDO
8 TDI
10 #RESET
12 TRACECLK
14 TRACE_DATA[0]
16 TRACE_DATA[1]
18 TRACE_DATA[2]
20 TRACE_DATA[3]
Figure 9.3. Debug Connector
Note that the pin-out matches the pin-out of an ARM Cortex Debug+ETM connector, but these are not fully compatible as pin 7 is physi-
cally removed from the Cortex Debug+ETM connector.
Table 9.1. Debug Connector Pinout
Pin number(s)
Function
Note
1
VTARGET
Target voltage on the debugged application.
2
TMS/SDWIO
JTAG TMS or Serial Wire Data I/O
4
TCK/SWCLK
JTAG TCK or Serial Wire clock
6
TDO/SWO
JTAG TDO or Serial Wire Output
8
TDI
JTAG data in
10
#RESET
Target MCU reset
12
TRACECLK
ETM Trace Clock
14
TRACEDATA[0]
ETM Trace Data 0
16
TRACEDATA[1]
ETM Trace Data 1
18
TRACEDATA[2]
ETM Trace Data 2
20
TRACEDATA[3]
ETM Trace Data 3
9
Cable detect
This signal must be pulled to ground by the external debugger or application for ca-
ble insertion detection.
11, 13
NC
Not connected
3, 5, 15, 17, 19
GND
Note: The Wireless Starter Kit Mainboard does not have an onboard trace emulator. To have trace functionality an external debugger
with such functionality can be connected with Debug In.
Note: Although the Debug Connector can support JTAG debugging of external targets, the EZR32-series of devices do not support
JTAG.
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