Freescale Semiconductor PowerQUICC III MPC8541E, Manuallines

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PowerQUICC III MPC8555E and MPC8541E Bring-Up Guidelines, Rev. 5
10 Freescale Semiconductor
Debug
4.1 TRST
TRST is the reset pin for the JTAG/COP interface. It must be held at a low level during the assertion of
HRESET to reset all logic completely on the PowerQUICC III. For compatibility with third-party tools,
TRST and HRESET must be able to assert independently (see the example in
Figure 3 ).