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Configuring the Hardware

The EPM900 is configured by several jumpers (J1, J2, and XTAL).

Emulation Mode

Jumpers1 Set J1 and J2 to Emu to select emulation mode. In this mode the EPM900 operates as an emulator. Power (3.3 Volts) from the EPM900 is supplied to the emulated device's VDD pin.

Emulation Mode Without Target Power

Emulation Mode - no target Set J1 to Emu to select emulation mode and remove J2 to disconnect the target power supply from the EPM900 power supply. When J2 is removed, the VDD pin of the device under emulation is not supplied with 3.3V power from the EPM900.

Clock Source

Clock Table The Philips LPC900 devices support several clock sources. The XTAL jumpers select whether the clock is internal (int.) or external (ext.). If an external clock is used you must populate Q1 (user-XTAL) on the EPM900 board.
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