3.3 JTAG Debug Port

Figure 3-2. JTAG Port
Table 3-2. J2, JTAG Port Pinout
PinSignalFunction

3

JTAG_nTRST

Target reset

5

JTAG_TDI

Target data input

7

JTAG_TDO

Target data output

9

JTAG_TCK

Target clock

11

JTAG_RTCK

Target return clock

13

JTAG_TDO

Target data output

15

nRST

System reset

1, 2, 17, 19

–

Not connected

4, 6, 8, 10, 12, 14, 16, 18, 20

GND

System ground