3.19.1 JTAG Interface

The SAM9X75 cHybrid includes a 10-pin JTAG header (J11) to facilitate software development and debugging using various JTAG emulators. The interface signals have a voltage level of 3.3V.

The following figure shows the JTAG interface.

Figure 3-25. JTAG Interface

The following table shows the Debug JTAG connector signal descriptions.

Table 3-13. JTAG Interface Connector Signal Description
Pin NoSignal NameSignal Description
1VDD_3V33.3V
7NCNot connected
3, 5, 9GNDGround
8JTAG_TDITest data in
2JTAG_TMSTest mode select
4JTAG_TCKTest clock
6JTAG_TDOTest data out
10NRSTReset