diff --git a/src/gateware/zc706.py b/src/gateware/zc706.py
index 2d6a40d..5bb1af9 100755
--- a/src/gateware/zc706.py
+++ b/src/gateware/zc706.py
@@ -709,6 +709,9 @@ class CXP_FMC():
         cxp_loopback_mem_group = []
         for i, (tx, rx) in enumerate(zip(cxp_phys.upconn.tx_phys, cxp_phys.downconn.rx_phys)):
             cxp_name = "cxp" + str(i)
+
+            # TODO: cdr = ClockDomainsRenamer({"cxp_gtx_rx": "cxp_gtx_rx" + str(i)})
+            
             cxp_interface = cxp.CXP_Interface(tx, rx, debug_sma, pmod_pads)
             setattr(self.submodules, cxp_name, cxp_interface )
             self.csr_devices.append(cxp_name)