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Ixiasoft
Visible to Intel only — GUID: nik1411004558262
Ixiasoft
9.2. TX Out‑of‑Band Flow Control Signals
The transmit out‑of‑band flow control interface receives calendar and status information, and transmits flow‑control clock, data, and sync signals. The TX Out-of-Band Flow Control Interface Signals table describes the transmit out‑of‑band flow control interface signals specified in the Interlaken Protocol Specification, Revision 1.2. The TX Out-of-Band Flow Control Block Signals for Application Use table describes the signals on the application side of the TX out‑of‑band flow control block.
Signal Name |
Direction |
Width (Bits) |
Description |
---|---|---|---|
fc_clk |
Output |
1 |
Output reference clock to a downstream out-of-band RX block. Clocks the fc_data and fc_sync signals. You must connect this signal to a device pin. |
fc_data |
Output |
1 |
Output serial data pin to a downstream out-of-band RX block. You must connect this signal to a device pin. |
fc_sync |
Output |
1 |
Output sync control pin to a downstream out-of-band RX block. You must connect this signal to a device pin. |
Signal Name |
Direction |
Width (Bits) |
Description |
---|---|---|---|
double_fc_clk |
Input |
1 |
Reference clock for generating the flow control output clock fc_clk. The frequency of the double_fc_clk clock must be double the intended frequency of the TX fc_clk output clock. |
double_fc_arst |
Input |
1 |
Asynchronous reset for the out-of-band TX block. |
ena_status |
Input |
1 |
Enable transmission of the lane status and link status to the downstream out-of-band RX block. If this signal is asserted, the lane and link status information is transmitted on fc_data. If this signal is not asserted, only the calendar information is transmitted on fc_data. |
lane_status |
Input |
Number of Lanes |
Lane status to be transmitted to a downstream out-of-band RX block if ena_status is asserted. Width is the number of lanes. |
link_status |
Input |
1 |
Link status to be transmitted to a downstream out-of-band RX block if ena_status is asserted. |
calendar |
Input |
16 |
Calendar status to be transmitted to a downstream out-of-band RX block. |