HW-USB-II-G Xilinx Inc, HW-USB-II-G Datasheet - Page 33

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

Specifications of HW-USB-II-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: 122-1572

Table 10: Switching Characteristics
X-Ref Target - Figure 31
Notes:
1.
2.
3.
4.
USB-IF Compliance
Platform Cable USB II is certified by the USB Integrators Forum (USB-IF). Certification is achieved when a product passes
a battery of tests required by the USB-IF Compliance Program. These tests (performed at an independent test facility)
measure a product's conformity with Universal Serial Bus Specification Revision 2.0 and establish a reasonable level of
DS593 (v1.2.1) March 17, 2011
Symbol
Platform Cable USB II asserts
All times are in nanoseconds and are relative to the target system interface connector.
T
T
Propagation delays associated with buffers on the target system must be taken into account to satisfy the minimum setup times.
TDI_DIN_MOSI on the falling
T
T
T
TSU
CSU
TSU
CSU
TPD
edge of TCK_CCLK_SCK
Min is the minimum setup time guaranteed by Platform Cable USB II relative to the positive edge of TCK_CCLK_SCK.
Min is the minimum setup required by Platform Cable USB II to properly sample TDO_DONE_MISO.
TDO_DONE_MISO
TMS_PROG_SS /
TCK_CCLK_SCK
TMS_PROG_SS and
TDI_DIN_MOSI
Target Setup Time
(TDI or TMS relative to the
positive edge of TCK)
Cable Setup Time
(TDO relative to the
negative edge of TCK)
Target Propagation Delay Time
(TDO relative to the
negative edge of TCK)
Description
Figure 31: Platform Cable USB II Timing Diagram
Target devices samples TMS_PROG_SS and
TDI_DIN_MOSI on the rising edge of TCK_CCLK_SCK
T
CLK
Platform Cable USB II samples TDO_DONE_MISO
T
CPD
V
V
V
REF
REF
REF
www.xilinx.com
= 1.5V to 3.3V
= 1.5V to 3.3V
= 1.5V to 3.3V
T
TSU
on the falling edge of TCK_CCLK_SCK
Conditions
T
Target device asserts TDO_DONE_MISO
on the falling edge of TCK_CCLK_SCK
TPD
15.8
Min
4.8
T
CSU
Platform Cable USB II
Max
24.6
DS593_31_021408
Units
ns
ns
ns
33