HW-USB-G Xilinx Inc, HW-USB-G Datasheet - Page 5

• Manufacturer Part Number: HW-USB-G
• Description: PLATFORM CABLE USB
• Manufacturer: Xilinx Inc

Specifications of HW-USB-G

• Accessory Type: USB Platform Cable
• For Use With/related Products: Xilinx FPGA, CPLDS, Platform Flash PROMs, XC18V00 PROMs, System ACE MPM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 122-1459; HW-USB; HW-USB

Hot Plug and Play
The cable can be attached and removed from the host
computer without the need to power-down or reboot. There
is a momentary delay after connecting the cable to an
available port before the Status LED illuminates. This
process is called enumeration.
When Platform Cable USB completes the enumeration
process on a Windows system, a "Programming cables" entry
appears in the Windows Device Manager (see
display Device Manager, right-click on My Computer, then
select Properties → Hardware → Device Manager.
X-Ref Target - Figure 7
iMPACT Configuration Cable Selection
Platform Cable USB can be designated as the "active"
configuration cable by following the auto-connect sequence
for configuring devices that is displayed when first starting
an iMPACT session.
Note:
as the "active" cable if both PC4 and Platform Cable USB are
connected simultaneously.
Alternatively, the cable can be manually selected using
the Output → Cable Setup option on the iMPACT toolbar
(see
When the Cable Communications Setup dialog box is
displayed
button must be set to "Platform Cable USB."
Before switching from the Boundary-Scan mode to the Slave
Serial mode or vice versa, use Output → Cable Disconnect.
After the mode switch is complete, reestablish the cable
connection using the Output → Cable Setup dialog.
If an iMPACT session is active when the cable is removed,
the Status bar immediately indicates "No Connection."
DS300 (v3.2) May 14, 2008
Product Specification
Figure 7: Device Manager Cable Identification
Figure
During the auto-connect sequence, iMPACT selects PC4
(Figure
R
8).
9), the Communication Mode radio
DS300_07_110604
Figure
7). To
www.xilinx.com
X-Ref Target - Figure 8
X-Ref Target - Figure 9
Configuration Clock Speed
The Platform Cable USB configuration clock
(TCK_CCLK_SCK) frequency is selectable.
the complete set of available TCK_CCLK_SCK speed
selections for high-power USB ports.
Table 1: Speed Selection for High-Power Ports
In slave-serial or SPI mode, the TCK_CCLK_SCK speed
can be set to any one of the available selections. By default,
the TCK_CCLK_SCK speed is set to 6 MHz. Users should
take care to select a TCK_CCLK_SCK frequency that
matches the slave-serial clock (CCLK or SPI clock)
specification of the target device.
Figure 9: iMPACT Cable Communication Setup Dialog
Figure 8: iMPACT Cable Selection Drop-Down Menu
Selection
3 (default)
1
2
4
5
6
TCK_CCLK_SCK
Frequency
750
1.5
24
12
6
3
Platform Cable USB
Table 1
DS300_09_110604
DS300_08_110604
Units
MHz
MHz
MHz
MHz
MHz
kHz
shows
5