6.4. Transceiver Signals
| Signal | Direction | Description | 
|---|---|---|
| sdi_tx | Output | Transmitter serial out. | 
| sdi_tx_b 11 | Output | Transmitter serial out for link B. | 
| sdi_rx | Input | Receiver serial in. | 
| sdi_rx_b 11 | Input | Receiver serial in for link B. | 
| Signal | Width | Clock Domain | Direction | Description | 
|---|---|---|---|---|
| xcvr_refclk_sel 12 | 1 | tx_coreclk | Input | Transceiver reference clock select signal that selects which clock to be used. 
 Applicable only when you enable the Tx PLL Dynamic Switching option. | 
| tx_pll_locked 12 | 1 | — | Output | PLL locked signal (TX PLL0) for the Native PHY IP core. | 
| tx_pll_locked_alt 12 | 1 | — | Output | PLL locked signal (TX PLL1) for the Native PHY IP core. Applicable only when you enable the Tx PLL Dynamic Switching option. | 
| reconfig_to_xcvr 12 | 70N | — | Input | Dynamic reconfiguration input for the Native PHY IP core, where N is the reconfiguration interface. 
 | 
| reconfig_to_xcvr_b 13 | 70N | — | Input | Dynamic reconfiguration input for the Native PHY IP core, where N is the reconfiguration interface. 
 | 
| reconfig_from_xcvr | 46N | — | Output | Dynamic reconfiguration output for the Native PHY IP core, where N is the reconfiguration interface. 
 
        Note: Not applicable for  Agilex™ 7 F-Tile,  Arria® 10,  Cyclone® 10 GX, and  Stratix® 10 devices. 
        | 
| reconfig_from_xcvr_b 13 | 46N | — | Output | Dynamic reconfiguration output for the Native PHY IP core, where N is the reconfiguration interface. 
 | 
| rx_sdi_start_reconfig 14 | 1 | rx_coreclk | Output | Request to start dynamic reconfiguration. This signal stays asserted until rx_sdi_reconfig_done indicates that the reconfiguration process is complete. | 
| rx_sdi_reconfig_done 14 | 1 | — | Input | Indicates that dynamic reconfiguration has completed.This signal should connect to the reconfiguration status signal of the external transceiver reconfiguration management. 
 | 
| rx_ready 14 | 1 | — | Input | Status signal from the transceiver reset controller to indicate when RX PHY sequence is complete. | 
| gxb_ltr 14 | 1 | rx_coreclk | Output | Control signal to the transceiver rx_set_locktoref input signal. Assertion of this signal programs the Rx CDR to lock manually to reference mode. | 
| gxb_ltd 14 | 1 | rx_coreclk | Output | Control signal to the transceiver rx_set_locktodata input signal. | 
| rx_ready_b | 1 | — | Input | Status signal from Transceiver Reset Controller to indicate when Rx PHY reset sequence is complete for link BFor HD-SDI dual link receiver protocol configuration only. (Not supported anymore on A10 from 16.1 onwards). | 
| gxb_ltr_b | 1 | rx_coreclk | Output | Control signal to transceiver rx_set_locktoref input port. When asserted, programs the RX CDR to manual lock to reference mode.For HD-SDI dual link receiver protocol configuration only. (Not supported anymore on A10 from 16.1 onwards). | 
| gxb_ltd_b | 1 | rx_coreclk | Output | Control signal to transceiver rx_set_locktodata input port. When asserted, programs the RX CDR to manual lock to data mode.For HD-SDI dual link receiver protocol configuration only. (Not supported anymore on A10 from 16.1 onwards). | 
| rx_xcvr_reset_ack | 1 | — | Input | Status signal from transceiver indicating that the Rx transceiver is fully in reset |