Hardware Description; Leds; Hpusb-Ice/Usb-Ice Leds - Analog Devices HPUSB User Manual

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2 HARDWARE DESCRIPTION

This chapter describes the hardware design of the USB- and PCI-based

emulators.

Four LEDs are located on the enclosure:

• 1.8V LED – Signifies that the ICE drives all signals at 1.8V

compliant levels.

• 2.5V LED – Signifies that the ICE drives all signals at 2.5V

compliant levels.

• 3.3/5V LED – Signifies that the ICE drives all signals at 3.3V

compliant levels.

• ENABLE – This LED is amber when the debugger is enabled. This

means that the emulator is driving the JTAG signals, and the con-

nector must not remove or plug onto a target when the light is

amber. When the LED is green, the JTAG signals are not being

driven, and it is safe to connect to a target. The green LED indi-

cates that the board is powered up but not in emulation mode.

HPUSB, USB, and HPPCI Emulators User's Guide

2-1 

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Usb Hppci Hppci-ice Hpusb-ice Usb-ice