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ManualsBrandsDigilent ManualsFPGADigilent JTAG-SMT3-NC Programming Module w/ UART interface (MSL 6)

10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc]

https://reference.digilentinc.com/reference/programmers/jtag-smt3/reference-manual 1/16

The Joint Test Action Group (JTAG)-SMT3-NC () is a compact, complete, and fully self-contained surface-mount programming module

for Xilinx field-programmable gate arrays (FPGAs). The module can be accessed directly from all Xilinx Tools, including iMPACT,

ChipScope™, Vivado, and EDK. Users can load the module directly onto a target board and reflow it like any other component.

The JTAG-SMT3-NC () uses a 3.3V main power supply and independent Vref supplies to drive the JTAG and UART signals. All JTAG

signals use high speed 24mA three-state buffers that allow signal voltages from 1.8V to 5.5V, and bus speeds up to 30MBit/sec. All UART

signals use high speed 24mA buffers that allow signal voltages from 1.8V to 5.5V and bus speeds up to 12Mbaud. The JTAG bus can be

shared with other devices as the SMT3-NC () signals are held at high impedance, except when actively driven during programming. The

SMT3-NC () module is CE certified and fully compliant with EU RoHS and REACH directives. The module routes the USB D+ (DP) and

D- (DM) signals out to pads, providing the system designer with the ability to choose the type of USB connector and its location on the

system board.

(https://reference.digilentinc.com/_media/reference/programmers/jtag-smt3/jtag-smt3-0.png)

JTAG-SMT3-NC Reference Manual

Summary of content (16 pages)

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0/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] JTAG-SMT3-NC Reference Manual The Joint Test Action Group (JTAG)-SMT3-NC () is a compact, complete, and fully self-contained surface-mount programming module for Xilinx field-programmable gate arrays (FPGAs). The module can be accessed directly from all Xilinx Tools, including iMPACT, ChipScope™, Vivado, and EDK. Users can load the module directly onto a target board and reflow it like any other component. The JTAG-SMT3-NC () uses a 3.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] https://reference.digilentinc.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] https://reference.digilentinc.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] https://reference.digilentinc.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] Features Small, complete, all-in-one JTAG programming/debugging solution for Xilinx FPGAs with UART side channel Compatible with Xilinx Tools High-Speed USB 2.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] Note: Keep the impedance between the SMT3-NC () and FPGA below 100 Ohms to operate the JTAG at maximum speed. Note: If series resistors are used, they should be placed near the transmitting end in order to minimize reflections. In addition to supporting JTAG, the JTAG-SMT3-NC () also features a UART Interface that allows communication with UART peripherals (see Fig. 2).
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] Application Examples Example 1: Interfacing a Zynq-7000 Figure 4 demonstrates how to connect the JTAG-SMT3-NC () to Xilinx’s Zynq-7000 silicon. Please note that VCCO_0 and VCCO_MIO1 may be powered by the same supply or by different supplies. The PS_SRST_B pin of the SMT3-NC () is driven by an open drain buffer and therefore an external open drain buffer is not required to add an optional reset button. https://reference.digilentinc.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] Example 2: Interfacing a Zynq-7000 while retaining the Xilinx JTAG Header Figure 5 below demonstrates how to connect the JTAG-SMT3-NC () to Xilinx’s Zynq-7000 silicon alongside Xilinx’s 14-pin JTAG header. In this example, an open drain buffer allows both the SMT3-NC () and Xilinx JTAG Header to drive the PS_SRST_B pin, which may operate a different voltage than the Zynq’s JTAG pins. https://reference.digilentinc.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.
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/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] JTAG-SMT3-NC () JTAG-SMT2 JTAG-SMT2-NC () Max Speed 30 MHz () 30 MHz () 30 MHz () Voltage Range 1.8V – 5V 1.8V – 5V 1.8V – 5V Xilinx Native Support ISE 14.1+ Vivado 2014.1 ISE 14.1+ Vivado 2013.1+ ISE 14.1+ Vivado 2013.1+ Xilinx Plug-in Support ISE 13.1+ ISE 13.1+ ISE 13.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] Mechanical Information General USB Signal Routing Guidelines Maintain a differential impedance of 90 Ohms between the DP and DM signals. Keep DP and DM trace lengths within 50 mils of each other. Minimize DP and DM signal trace length. Keeping the trace length below 3 inches is recommended. https://reference.digilentinc.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] When possible, route DP and DM on the plane closest to the ground plane. When possible, avoid routing the DP and DM signals through vias. If vias cannot be avoided, then keep them small and place the DP and DM traces on the same layer. When possible, avoid routing other traces near DP and DM. When possible, minimize or avoid the use of bends in the DP and DM traces.
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] Symbol Parameter Min TA Operating Temperature -40 Typ Max Unit 85 ºC AC Operating Characteristics The JTAG-SMT3-NC’s JTAG signals operate according to the timing diagram in Fig. 7. The SMT3-NC () supports JTAG/TCK frequencies from 30 MHz () to 8 KHz at integer divisions of 30 MHz () from 1 to 3750. Common frequencies include 30 MHz (), 15 MHz (), 10 Mhz, 7.5 MHz (), and 6 MHz () (see Table 2).
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10/3/2018 JTAG-SMT3-NC Reference Manual [Reference.Digilentinc] Packaging Digilent ships quantities under 40pcs individually packaged in antistatic bags. Digilent will pack and ship larger quantities in groups of 40 positioned in an antistatic bake tray (see Fig. 10). Trays will be packaged in an anti-static vacuum sealed bag. We also offer to bake them before shipping for an additional cost per 40pc lot. programmers (https://reference.digilentinc.
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