Figure 12-1 Jtag-Dp Physical Connection - ARM Cortex-M3 Technical Reference Manual

Debug Port
12-4
Note
The nTRST input to JTAG-DP can be driven from Power On Reset, and does not have
to be connected to a dedicated pin.
The recommended physical connection to the JTAG-DP is shown in Figure 12-1.
The DAP State Machine (JTAG)
Figure 12-2 on page 12-5 shows the JTAG state machine.
Copyright © 2005, 2006 ARM Limited. All rights reserved.

Figure 12-1 JTAG-DP physical connection

ARM DDI 0337B