410-308-B 评估板开发板 MOD PROGRAMMING JTAG-SMT2-NC

410-308-B评估板开发板MOD PROGRAMMING JTAG-SMT2-NC

Overview

　　The Joint Test Action Group (JTAG)-SMT2-NC is a pact, plete, 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?, eFuse, Vivado, and EDK. Users can load the module directly onto a target board and reflow it like any other ponent.

　　The JTAG-SMT2-NC uses a 3.3V main power supply and a separate Vref supply to drive the JTAG signals. All JTAG signals use high speed 24mA three-state buffers that allow signal voltages from 1.8V to 5V and bus speeds up to 30MBit/sec. The JTAG bus can be shared with other devices as the SMT2-NC signals are held at high impedance, except when actively driven during programming. The SMT2-NC module is CE certified and fully pliant 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.

　　Features include:

　　? Small, plete, all-in-one JTAG programming/debugging solution for Xilinx FPGAs

　　? Compatible with all Xilinx Tools

　　? Compatible with IEEE 1149.7-2009 Class T0 – Class T4 (includes 2-Wire JTAG)

　　? GPIO pin allows debugging software to reset the processor core of Xilinx’s Zynq® platform

　　? Single 3.3V supply

　　? Separate Vref drives JTAG signal voltages; Vref can be any voltage between 1.8V and 5V.

　　? High-Speed USB2 port that can drive JTAG/SPI bus at up to 30Mbit/sec (frequency settable by user)

　　? SPI programming solution (modes 0 and 2 up to 30Mbit/sec, modes 1 and 3 up to 2Mbit/sec)

　　? Small form-factor surface-mount module can be directly loaded on target boards

　　? USB D+ and D- signals routed to pads, allowing USB connector to be placed anywhere on the host PCB

　　Users can connect JTAG signals directly to the corresponding FPGA signals, as shown in Fig. 1. For best results,

　　mount the module over a ground plane on the host PCB. Although users may run signal traces on top of the host

　　PCB beneath the SMT2-NC, Digilent remends keeping the area immediately beneath the SMT2-NC clear.

　　Note: Keep the impedance between the SMT2-NC and FPGA below 100 Ohms to operate the JTAG at maximum

　　speed.

　　李 进

　　深圳博瑞图电子科技有限公司

　　MOB :

　　FAX :

　　ADD :深圳市福田区福明路中航路世纪汇都会轩3713

　　EMAIL :lijin810230@163.COM

　　网址：