Nexus Development Interface (NDI)
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 36-11
36.4.1.6 e200z6 and e200z0 Cross Triggering Control
To enable a debug event in one core to cause a debug event in the other core at approximately the same
time, the EVTO signal from the e200z0 Nexus2+ or e200z6 Nexus3+ is connected to the other core’s devt2
input. When enabled in each core’s Nexus1 DBCR0 register, a pulse of the devt2 signal causes a debug
event to occur. In this case, only one external EVTO signal is generated and each core controls whether or
not EVTO causes a debug event to occur.
Interconnection of debug mode control signals are shown in Figure 36-3.
Figure 36-3. Debug Mode Control Interconnections
Figure 36-4 shows the flow for configuring the e200z0 Nexus2+ to cause an debug request to the e200z6.
Table 36-6. SRC Packet Encodings
SRC[3:0] Client
0b0000 e200z6
0b0001- 0b0111 Reserved
0b1000 e200z0
0b1001- 0b1111 Reserved
EVTI
EVTI
EVTO
devt2
e200z6 Core Complex
EVTI
devt2
EVTO
e200z0 Core Complex
EVTO
NPC
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