SLWSTK6061A Datasheet, PDF (8/32 Pages) Silicon Laboratories – UG182: EFR32 Flex Gecko 2400/868 MHz Wireless Starter Kit

UG182: EFR32 Flex Gecko 2400/868 MHz Wireless Starter Kit
Connectors
4.3 Debug Connector
The Debug Connector serves multiple purposes based on the "debug mode" setting which can be configured in Simplicity Studio. When
mode is set to "Debug IN", this connector allows an external debug emulator to be used with the radio board EFR32. When set to "De-
bug OUT", this connector allows the kit to be used as a debugger towards an external target. When set to "Debug MCU" (default), this
connector is isolated from the debug interface of both the Board Controller and the on-board target device.
Because this connector is automatically switched to support the different operating modes, it is only available when the Board Controller
is powered (J-Link USB cable connected). If debug access to the target device is required when the Board Controller is unpowered, this
should be done by connecting directly to the appropriate breakout pins.
The pinout of the connector follows that of the standard ARM Cortex Debug+ETM 19-pin connector. The pinout is described in detail
below. Even though the connector has support for both JTAG and ETM Trace, it does not necessarily mean that the kit or the on-board
target device supports this.
VTARGET 1
GND
3
GND 5
NC 7
Cable Detect 9
NC 11
NC 13
GND 15
GND 17
GND 19
2 TMS / SWDIO / C2D
4 TCK / SWCLK / C2CK
6 TDO / SWO
8 TDI / C2Dps
10 RESET / C2CKps
12 TRACECLK
14 TRACED0
16 TRACED1
18 TRACED2
20 TRACED3
Figure 4.4. Debug Connector
Note: The pinout matches the pinout of an ARM Cortex Debug+ETM connector, but these are not fully compatible as pin 7 is physically
removed from the Cortex Debug+ETM connector. Some cables have a small plug that prevent them from being used when this pin is
present. If this is the case, remove the plug, or use a standard 2x10 1.27 mm straight cable instead.
Pin number(s)
1
2
4
6
8
10
12
14
16
18
20
9
11, 13
3, 5, 15, 17, 19
Table 4.2. Debug Connector Pin Descriptions
Function
Description
VTARGET
Target voltage on the debugged application.
TMS / SDWIO / C2D JTAG test mode select, Serial Wire data or C2 data
TCK / SWCLK / C2CK JTAG test clock, Serial Wire clock or C2 clock
TDO/SWO
JTAG test data out or Serial Wire Output
TDI / C2Dps
JTAG test data in, or C2D "pin sharing" function
RESET / C2CKps
Target device reset, or C2CK "pin sharing" function
TRACECLK
Not connected
TRACED0
Not connected
TRACED1
Not connected
TRACED2
Not connected
TRACED3
Not connected
Cable detect
Connect to ground
NC
Not connected
GND
Ground
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