Altera SDI II MegaCore Instrukcja Użytkownika Pobierz pdf (Strona 35)

.number_of_reconfig_interfaces (7),

….

) u_reconfig (

.reconfig_to_xcvr ({reconfig_to_xcvr_du_ch2,

reconfig_to_xcvr_tx_ch1,

reconfig_to_xcvr_rx_ch1,

reconfig_to_xcvr_du_ch0}),

.reconfig_from_xcvr ({reconfig_from_xcvr_du_ch2,

reconfig_from_xcvr_tx_ch1,

reconfig_from_xcvr_rx_ch1,

reconfig_from_xcvr_du_ch0}),

);

Modifying the Reconfiguration Management

Perform the following changes to modify the reconfiguration management:

• Edit the Number_of_channels parameter in sdi_ii_ed_reconfig_mgmt.v. This parameter value should be

the total number of the SDI RX channels declared in the design. In this example, the NUM_CHS is 3.

• Link the interface signals—sdi_rx_start_reconfig, sdi_rx_reconfig_done, and sdi_rx_std—

between multiple SDI instances and reconfiguration management block. Link the interface signals—

sdi_tx_start_reconfig, sdi_tx_reconfig_done, and sdi_tx_pll_sel—between user and reconfi‐

guration management block. You must link the signals in the order of the logical channel number

(rx_log_ch_num and tx_log_ch_num) in the reconfiguration logic source file (sdi_ii_reconfig_logic.v).

For example:

wire tx_start_reconfig_ch2,tx_start_reconfig_ch1,tx_start_reconfig_ch0;

wire tx_pll_sel_ch2,tx_pll_sel_ch1,tx_pll_sel_ch0;

wire tx_reconfig_done_ch2,tx_reconfig_done _ch1,tx_reconfig_done_ch0;

wire rx_start_reconfig_ch2,rx_start_reconfig_ch1,rx_start_reconfig_ch0;

wire [1:0] rx_std_ch2, rx_std_ch1,rx_std_ch0;

wire rx_reconfig_done_ch2,rx_reconfig_done _ch1,rx_reconfig_done_ch0;

sdi_ii_ed_reconfig_mgmt #(

. NUM_CHS (3),

) u_reconfig_mgmt (

.sdi_tx_start_reconfig (tx_start_reconfig_ch2,

tx_start_reconfig_ch1,tx_start_reconfig_ch0),

.sdi_tx_pll_sel (tx_pll_sel_ch2,tx_pll_sel_ch1,tx_pll_sel_ch0),

.sdi_tx_reconfig_done (tx_reconfig_done_ch2,

tx_reconfig_done_ch1,tx_reconfig_done_ch0),

.sdi_rx_start_reconfig (rx_start_reconfig_ch2,

rx_start_reconfig_ch1,rx_start_reconfig_ch0),

.sdi_rx_std (rx_std_ch2,rx_std_ch1,rx_std_ch0),

.sdi_rx_reconfig_done (rx_reconfig_done_ch2,

rx_reconfig_done_ch1,rx_reconfig_done_ch0)

)

• In the reconfiguration logic source file, the default setting for the wire rx_log_ch_num is 0 and 2 for

channel 0 and channel 1, respectively. The default setting for the wire tx_log_ch_num is 0 and 2

(duplex) or 3 (TX) for channel 0 and channel 1, respectively. These numbers are referring to the

Number_of_channels parameter value that was set in transceiver reconfiguration controller. Hence,

the logical channel number for each SDI channel is as listed in the table below.

3-20

Modifying the Reconfiguration Management

UG-01125

2015.05.04

Altera Corporation

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