TASKING i SYSTEM ARM User Manual page 9

Pinout
The following pinout is valid on the target side:
Signal
Signal Description
Direction
I Reference Voltage
O JTAG
O Not Connected / JTAG
I/O / O SWD/JTAG
O SWD/JTAG
I Return TCK
I SWD/JTAG
I/O Reset
O Debug Request
I Debug Acknowledge
Signal Pin Pin
Vref 1
nTRST 3
NC/TDI 5
SWDIO/TMS 7
SWDCLK/TCK 9
RTCK 11
SWO/TDO 13
nRESET 15
DBGRQ 17
DBACK 19
20-pin ARM pinout
Signal
2 NC
4 GND
6 GND
8 GND
10 GND
12 GND
14 GND
16 GND
18 GND
20 GND
Signal Description
Not Connected
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Signal
Direction