Analog Devices HPUSB USB and HPPCI Emulator Users Guide Rev 32

							HPUSB, USB, and HPPCI Emulators User’s Guide 2-1 
2 HARDWARE DESCRIPTION
This chapter describes the hardware design of the USB- and PCI-based 
emulators. 
LEDs
This section describes the following LEDs:
“HPUSB-ICE/USB-ICE LEDs”
“HPPCI-ICE LEDs” on page 2-2
“Pod LEDs” on page 2-2
“Board LEDs” on page 2-4
HPUSB-ICE/USB-ICE LEDs
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. 
						

							LEDs
2-2 HPUSB, USB, and HPPCI Emulators User’s Guide  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.
HPPCI-ICE LEDs
Four LEDs are located on the pod enclosure (Figure 2-1), and five LEDs 
are located on the daughter board (Figure 2-2). 
Pod LEDs
Figure 2-1. Pod LEDs 
						

							HPUSB, USB, and HPPCI Emulators User’s Guide 2-3  Hardware Description
 1.8V LED – In auto detection mode, this LED signifies that a 
target VDDIO of 1.8V has been detected on the JTAG header 
(pin 5) on the processor target board, and the HPPCI-ICE drives 
all signals at 1.8V compliant levels.
 2.5V LED – In auto detection mode, this LED signifies that a 
target VDDIO of 2.5V has been detected on the JTAG header 
(pin 5) on the processor target board, and the HPPCI-ICE drives 
all signals at 2.5V compliant levels.
 3.3/5V LED – In auto detection mode, this LED signifies that a 
target VDDIO of 3.3V or 5V has been detected on the JTAG 
header (pin 5) on the processor target board, and the HPPCI-ICE 
drives all signals at 3.3V compliant levels. In legacy mode, this 
LED is powered automatically, and pin 5 of the JTAG header on 
the target board is not used to detect the target VDDIO voltage.
 ENABLE – This LED is turned on when a CrossCore Embedded 
Studio (CCES) or VisualDSP++ debug session is running. This 
LED shuts off every time the session is closed. When this LED is 
off, it signifies all outputs of the pod logic connected to the target 
have been three-stated. Three-stating the outputs of the pod when 
the IDE is inactive prevents the target processor from entering an 
unknown state during the target power up sequencing. 
						

							LEDs
2-4 HPUSB, USB, and HPPCI Emulators User’s Guide
Board LEDs
 VCC – This LED signifies that the board is receiving 5V power. If 
this LED is not active, the HPPCI-ICE does not function properly.
 3V – This LED signifies that the board is receiving 3.3V power. If 
this LED is not active, the HPPCI-ICE does not function properly.
 FPGA[1:0] – These two LEDs are used for factory purposes only.
 DONE – This LED is activated when a a CrossCore Embedded 
Studio or VisualDSP++ debug session is started. The LED should 
remain active even after the respective session has been terminated. 
The LED shuts off and re-activates at the beginning of every new 
session. Figure 2-2. Board LEDs 
						

							HPUSB, USB, and HPPCI Emulators User’s Guide 2-5  Hardware Description
Custom Processor Boards
When designing a custom processor board using Analog Devices 
processors and DSPs, special care must be taken to ensure that the JTAG 
interface is designed and laid out correctly. If the board is not designed 
correctly, communication via the JTAG port may not work. Another side 
effect may be that the interface works, but you are not able to run at the 
highest possible JTAG clock frequency. The JTAG clock frequency is 
dependant on the particular Analog Devices processor, as well as the delay 
characteristics of the custom processor board.
To ensure that the custom board’s JTAG interface is designed and laid out 
correctly, refer to Engineer-to-Engineer Note, Analog Devices JTAG Emu-
lation Technical Reference (EE-68), available from the Analog Devices Web 
site. This document is a technical reference for implementing the JTAG 
interface on your target.
HPPCI-ICE
The HPPCI-ICE consists of a daughter board and a pod cable. The system 
is compliant with revision 2.2 of the PCI specification and plugs into 
5V-only motherboards. It uses only the 5 volts from the PC’s PCI slot. 
The pod cable consists of a small PCB that has a multi-conductor cable 
soldered at each end. The multi-conductor cable is constructed with indi-
vidual coaxial cables that are encapsulated by shield ground. The PCB in 
the pod is fully enclosed in a copper-sprayed plastic enclosure. The 
multi-conductor cables and copper spray reduce system noise and electro-
magnetic interference.  
						

							HPPCI-ICE
2-6 HPUSB, USB, and HPPCI Emulators User’s Guide The mechanical dimensions of the daughter board, pod cable assembly, 
and pod enclosure are shown in Figure 2-3, Figure 2-4, and Figure 2-5, 
respectively. Unless specified, all dimensions are in inches. 
Figure 2-3. Daughter Board Dimensions (in inches) 
						

							HPUSB, USB, and HPPCI Emulators User’s Guide 2-7  Hardware Description
Figure 2-4. Pod Cable Dimensions (in inches)
Figure 2-5. Pod Box Dimensions (in inches) 
						

							HPPCI-ICE
2-8 HPUSB, USB, and HPPCI Emulators User’s Guide 
						

							HPUSB, USB, and HPPCI Emulators User’s Guide 3-1 
3 SUPPORT
Analog Devices provides free technical support.
Technical Support
For technical support, visit the Analog Devices Worldwide Technical Sup-
port page at:
  
http://www.analog.com/support.
From there you can:
 Access the EngineerZone DSP Support Forum where Analog 
Devices support team members and other designers exchange ideas 
and answer questions 
 Search our vast Knowledge Base containing application notes, data 
sheets, code examples, manuals, and more 
 Contact our Technical Support team directly by filling out the 
support form 
Alternately, you can contact Technical Support directly as follows:
 For tools issues, send a description of the problem by e-mail to 
[email protected] 
 For processor issues, send a description of the problem by e-mail to 
the Application Engineering group at 
[email protected] 
						

							Quality Assurance
3-2 HPUSB, USB, and HPPCI Emulators User’s Guide
Quality Assurance
Analog Devices is committed to providing quality products and services. 
To continually provide this quality, please contact our Quality Assurance 
Department directly if you have any concerns at (603) 883-2430, Monday 
through Friday during normal business hours, or via e-mail at 
proces-
[email protected]
. Our Quality Assurance manager will 
listen to your concerns and provide a timely and effective solution.