Altera Serial Digital Interface (SDI) MegaCore Function - Manual (Page 58)

3–28 Chapter 3: Functional Description
Block Description
Serial Digital Interface (SDI) MegaCore Function February 2013 Altera Corporation
User Guide
Table 3–10 lists the transceiver dynamic reconfiguration requirements.
Table 3–11 lists the rates for the different SDI standards.
To reprogram the transceivers, you must include the ALT2GXB_RECONFIG or
ALTGX_RECONFIG megafunction in your design. However, to reprogram
Arria II GX or Stratix IV device family, you require an ALTGX_RECONFIG
megafunction. You can get this parameterization from the
example\a2gx_tr\source\sdi_dprio_siv
directory in the example design. Similarly,
to reprogram Cyclone IV GX device family with channel reconfiguration mode, you
require a slightly different configuration of the ALTGX_RECONFIG megafunction.
You can get this parameterization from the
simulation\modelsim\trsdi_c4gx\channel_reconfig\testbench\pattern_gen
directory in the example simulation.
f For more information about the ALT2GXB_RECONFIG megafunction, refer to the
Stratix II GX ALT2GXB_RECONFIG Megafunction User Guide . For more information
about the ALTGX_RECONFIG megafunction, refer to the Stratix IV
ALTGX_RECONFIG Megafunction User Guide .
Table 3–10. Transceiver Dynamic Reconfiguration Requirements
SDI Standard Receiver Transmitter (1) Duplex (1)
SD-SDI No Yes Yes
HD-SDI No Yes Yes
3G-SDI No Yes Yes
Dual link No Yes Yes
Dual standard Yes Yes Yes
Triple standard Yes Yes Yes
Note to Table 3–10 :
(1) If the additional serial reference clock feature is enabled, the transmitters require dynamic reconfiguration to
enable toggling switching between the two input clocks.
Table 3–11. SDI Standard Rates
SDI Standard Data Rate Oversampling
Transceiver
Rate (MHz)
Transceiver
Reference Clock
(MHz)
rx_clk Rate
SD-SDI 270 Mbps 11 times 2,970 148.5 148.5
HD-SDI 1.485 Gbps None 1,485 148.5 (1) 74.25 (1)
3G-SDI 2.970 Gbps None 2,970 148.5 (1) 148.5 (1)
Note to Table 3–11 :
(1) Also supports the 1/1.001 rates for all supported devices, except Cyclone IV GX devices. For Cyclone IV GX
devices, the transceiver reference clock must be 148.35 MHz to support the 1/1.001 rates.