= WARP v3 AD Bridge (w3_ad_bridge) =

The w3_ad_bridge core implements the I/O logic for interfacing user designs with the digital I/Q interfaces of the AD9963 ADCs/DACs on the WARP v3 board. The AD9963 digital ports are double data rate (DDR) interfaces with interleaved I/Q. The w3_ad_bridge core uses IDDR and ODDR primitives in the FPGA IOBs to efficiently translate between the external interleaved I/Q ports and internal separate I/Q busses.

The w3_ad_bridge core is packaged as a pcore which can instantiated in an XPS project. The design has been tested in hardware using Xilinx ISE 13.4. The w3_ad_bridge core does not attach to a processor bus, so there is no driver.

The current version of the w3_ad_bridge core is [source:/PlatformSupport/CustomPeripherals/pcores/w3_ad_bridge_v3_00_g v3_00_g].

== Tx Path ==


== Hardware ==

The MHS snippet below shows the w3_ad_bridge instantiation used in the WARP v3 reference projects.

{{{
#!sh

#Top level ports
}}}

== Source ==

The full hardware and software source code is available in the repository: [source:/PlatformSupport/CustomPeripherals/pcores/w3_ad_bridge_v3_00_g]. The VHDL, Verilog and C source code are made available under the [wiki:/license WARP license].


== Changelog ==
2012-Aug-12:
 * Created w3_ad_bridge_v3_00_g, branched from w3_ad_bridge_v3_00_f
  * Separate sys_samp_clk ports for Tx/Rx paths, to enable different ADC/DAC data rates