Tegra 200 Series Developer Board User Guide
4.9 Miscellaneous
4.9.1 Thermal Diode (Temperature Sensor)
Figure 23: Thermal Diode Connection Example
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| 10KΩ |
| 10KΩ |
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| 100KΩ |
| 100KΩ |
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Table 13. Thermal Diode Pinout
SignalPin
THERMD_NE6
THERMD_PF7
4.9.2 Debug Interfaces
An optional debug connector providing access to several debugging interfaces can be added to a design, possibly in the early stages and removed for production. One option is the Debug connector shown in Figure 24. This connector is used with the E1137 Combo Debug Board. This board interfaces to the Tegra 200 Series Developer Board Debug connector (J10) using a flex cable. The Combo board provides:
Standard
-Can be used with standard ARM software development/debugging hardware
-Provides low level access to the CPUs and AVP
Ethernet
Note that in the circuit in Figure 24, there is an optional resistor on JTAG_TRST_N. For normal JTAG operation, this resistor should not be present. The JTAG_TRST_N pin on the Tegra 250 selects whether the JTAG interface is to be used for communicating with the Tegra 250 CPU complex, or for Test/Scan purposes. When JTAG_TRST_N is pulled low, the JTAG interface is enabled for access to the CPU complex. When high, it is in Test/Scan mode.
When used in the normal operating mode to access the internal CPUs, in order to reset the Tegra 250 JTAG block, a reset command is used rather than toggling the JTAG_TRST_N pin.
Advance Information – Subject to Change | 35 | |
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