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Spectrum Digital, Inc

2-34

TMS320C54XX Evaluation Module Technical Reference

2.11 LEDs

The EVM320C54X EVM has two light emitting diodes. DS1 indicates the presence of

+5 volts and is normally ‘on’ when power is applied to the board. DS2 is under software

control. It is tied to the XF pin on the DSP. These are shown in the table below:

2.12 Resets

There are multiple resets for the TMS320C54XX EVM. The first reset is the power on

reset. This circuit waits until power is within the specified range before releasing the

power on reset pin to the TMS320C54XX.

External sources such as push button (SW1), PC Host reset pin 4 on P5 UART

interface, and pin 13 on the Control Expansion connector can generate a reset

condition.

Table 30: LEDs

LED # Color Controlling Signal On Signal State

DS1 Green +5 Volts 1

DS2 Red XF on DSP 1

1 2 ... 39 40 41 42 43 44 45

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Akura AV26720-HD2 Spezifikationen Seite 44