HW-FLYLEADS Xilinx Inc, HW-FLYLEADS Datasheet - Page 7

• Manufacturer Part Number: HW-FLYLEADS
• Description: LEAD WIRES FLYING CABLE III/IV
• Manufacturer: Xilinx Inc

Specifications of HW-FLYLEADS

• Accessory Type: Parallel Cable
• For Use With/related Products: Xilinx FPGA, CPLDS, Platform Flash PROMs, XC18V00 PROMs, System ACE MPM
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 122-1473

X-Ref Target - Figure 11
Suspend State
Every USB device, including Platform Cable USB, can be
placed into a Suspend state by the host operating system.
This can occur during any of the following usage scenarios:
•
•
•
•
The purpose of the Suspend state is to reduce overall
power consumption. Suspend requests can be either global
or port-specific.
Platform Cable USB must consume less than 500 µA from
the hub port when it enters the Suspend state.
Consequently, the Status LED is turned off and remains off
until commanded to resume.
If an iMPACT operation is in progress when Suspend is
attempted, iMPACT displays a message indicating that
Suspend is blocked until the operation is complete or is
prematurely terminated
DS300 (v3.2) May 14, 2008
Product Specification
Figure 11: Status LEDs Indicating Target Voltage
The Suspend function key on a laptop computer is
pressed.
The display panel of a laptop is placed in the closed
position for transport while applications are running.
There is an extended period of time without data
transfer activity on the cable when connected to a
battery-powered laptop.
There is an extended period of time without data transfer
activity on the cable when connected to a desktop PC
configured with an "Energy Efficiency" option.
R
Green indicates target voltage present
Amber indicates no target voltage
(Figure
12).
DS300_11_081006
www.xilinx.com
X-Ref Target - Figure 12
The target interface logic, including drivers for
TCK_CCLK_SCK, TMS_PROG_SS, and TDI_DIN_MOSI,
is not powered in the Suspend mode. These signals float
to any DC bias level provided by the target hardware
during Suspend.
Note:
in Suspend mode. This is equivalent to a physical disconnect of
the cable. When operation resumes, it is necessary to manually re-
establish a connection to the cable using the Output → Cable
Setup toolbar selection.
Platform Cable USB Connections
This section of the data sheet discusses physical
connections from Platform Cable USB to the host PC and
the target system.
High-Performance Ribbon Cable
A 6" ribbon cable is supplied and recommended for
connection to target systems (refer to
incorporates multiple signal-ground pairs and facilitates
error-free connections.
To take advantage of the ribbon cable, a mating connector
must be incorporated into the target system. This connector
is normally installed only during prototype checkout. When
the production hardware is functional and the ISP devices
can be configured from alternate sources, the connector can
be eliminated as a cost reduction option. Maintaining the
footprint for this connector is a wise choice if space permits.
The connector is a 2 mm shrouded keyed header. See
"Target Interface Connectors," page 8
numbers and pin assignments.
Figure 12: Suspend Warning When iMPACT Is Busy
Some computers remove power entirely from the USB port
Figure
Platform Cable USB
for vendor part
13). The cable
ds300_11a_113004
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