Signal Name
Direction
Width
Description
tx_pll_locked
Output
1
TX PLL lock status
cdr_reconfig_busy
Output
1
RX CDR reconfiguration status
tx_reconfig_busy
Output
1
TX PLL / transceiver reconfiguration status
Table 18.
Loopback top signals
Signal Name
Direction
Width
Description
Clocks
sdi_tx_clkout
Input
1
TX transceiver recovered parallel clock for video data.
sdi_rx_clkout
Input
1
RX transceiver recovered parallel clock for video data.
Resets
sdi_rx_rst_proto
Input
1
Reset signal from RX SDI core to indicate that the
protocol is currently held in reset.
gxb_tx_ready
Input
1
Used as a reset signal to internal FIFO to indicate that
the TX is ready to receive.
SDI related signals
sdi_rx_dataout
Input
20*N
Receiver recovered parallel video data
sdi_rx_dataout_valid
Input
1
Data valid signal generated from SDI RX core
sdi_rx_std
Input
3
Received video standard from SDI RX core
sdi_rx_trs
Input
N
Receiver output signal from SDI core that indicates
current word is TRS.
sdi_rx_trs_locked
Input
N
TRS locked status signal from SDI RX core
sdi_rx_frame_locked
Input
1
Frame locked status signal from SDI RX core
sdi_tx_dataout_valid
Input
1
Data valid signal generated from SDI TX core
sdi_tx_datain
Output
20*N
Parallel video data input to SDI TX core.
sdi_tx_datain_valid
Output
1
Data valid for the transmitter parallel data to SDI TX
core.
sdi_tx_trs
Output
1
Transmitter TRS input to indicate that the current word is
a TRS to SDI TX core.
sdi_tx_std
Output
3
Indicates the desired transmit video standard to SDI TX
core.
Note:
N=4 for multi rate, otherwise N=1.
2. Design Example Detailed Description
710496 | 2022.01.28
F-Tile SDI II Intel
®
Agilex
™
FPGA IP Design Example User Guide
35