Instantiating the UHD-SDI Wrappers

There are two main UHD-SDI wrappers in this application note, the SDI Wrapper Support (kugth_uhdsdi_wrapper_support.v) and SDI Wrapper (kugth_uhdsdi_wrapper.v), shown in Figure 1. The SDI Wrapper Support is needed when QPLL0 and/or QPLL1 is/are used by the SDI Wrapper and is instantiated once per quad only.

The SDI Wrapper Support and/or SDI Wrapper need to be instantiated and interconnected in your design. It is possible to implement the SDI interface without the SDI wrapper supplied with this application note, but the wrapper simplifies things because it interconnects the SMPTE UHD-SDI Core, Control Module, and one channel of GT Wizard IP. If the wrapper is not used, you must make all of these connections. There are alternative SDI wrapper files called kugth_uhdsdi_<line rate>_norxedh_wrapper.v that should be used when the UHD-SDI core is generated without the RX EDH processor.

There are 24 wrappers included in the reference design. Instantiation and usage depend entirely upon the UHD-SDI core configuration. SDI 4-Channel Wrapper per quad:

• kugth_uhdsdi_12g_16s_4ch_wrapper.v
• kugth_uhdsdi_12g_16s_norxedh_4ch_wrapper.v
• kugth_uhdsdi_12g_8s_4ch_wrapper.v (used in the reference design)
• kugth_uhdsdi_12g_8s_norxedh_4ch_wrapper.v
• kugth_uhdsdi_6g_4ch_wrapper.v
• kugth_uhdsdi_6g_norxedh_4ch_wrapper.v
• kugth_uhdsdi_3g_4ch_wrapper.v
• kugth_uhdsdi_3g_norxedh_4ch_wrapper.v SDI Wrapper Support
• kugth_uhdsdi_12g_16s_wrapper_support.v
• kugth_uhdsdi_12g_16s_norxedh_wrapper_support.v
• kugth_uhdsdi_12g_8s_wrapper_support.v (used in the reference design)
• kugth_uhdsdi_12g_8s_norxedh_wrapper_support.v
• kugth_uhdsdi_6g_wrapper_support.v
• kugth_uhdsdi_6g_norxedh_wrapper_support.v
• kugth_uhdsdi_3g_wrapper_support.v
• kugth_uhdsdi_3g_norxedh_wrapper_support.v SDI Wrapper
• ugth_uhdsdi_12g_16s_wrapper.v
• kugth_uhdsdi_12g_16s_norxedh_wrapper.v
• kugth_uhdsdi_12g_8s_wrapper.v (used in the reference design)
• kugth_uhdsdi_12g_8s_norxedh_wrapper.v
• kugth_uhdsdi_6g_wrapper.v
• kugth_uhdsdi_6g_norxedh_wrapper.v
• kugth_uhdsdi_3g_wrapper.v
• kugth_uhdsdi_3g_norxedh_wrapper.v

In addition to the UHD-SDI core, the SDI Wrapper instantiates the following files:

• kugth_uhdsdi_control.v
• kugth_uhdsdi_drp_control.v
• kugth_uhdsdi_drp_control_fsm.v
• kugth_uhdsdi_rx_control.v
• kugth_uhdsdi_tx_control.v
• sync_block.v
• uhdsdi_rate_detect.v
• bs_flex_v_1.vhd
• nidru_20_v_7.vhd
• nidru_20_wrapper.vhd
• dru_sim.v