Altera Interlaken MegaCore Function Bedienungsanleitung PDF herunterladen (Seite 61)

Chapter 5: Signals 5–9

Out-of-Band Flow Control Interface Signals

June 2012 Altera Corporation Interlaken MegaCore Function

User Guide

rx_oob_in_fc_data

Input

Input serial data pin from an upstream out-of-band TX block. You

must connect this signal to a device pin.

rx_oob_in_fc_sync

Input

Input sync control pin from an upstream out-of-band TX block. You

must connect this signal to a device pin.

Note to Table 5–9:

(1) The maximum

rx_oob_in_clk

frequency allowed by the Interlaken specification is 100 MHz. Altera recommends that you run the

rx_oob_in_clk

clock at 100 MHz.

Table 5–9. RX Out-of-Band Flow Control Interface Signals (Part 2 of 2)

Signal Direction Description

Table 5–10. RX Out-of-Band Flow Control Block Signals for Application Use

Signal Direction Description

rx_oob_in_sys_clk

(1)

Input

Reference clock for capturing RX calendar, lane status, and link

status. Frequency must be at least double the frequency of

rx_oob_in_fc_clk

rx_oob_in_sys_arst

Input Asynchronous reset for the out-of-band RX block.

rx_oob_out_status_update

Output

Indicates a new value without CRC-4 errors is present on at least one

rx_oob_out_lane_status

rx_oob_out_link_status

in the

current

rx_oob_in_sys_clk

cycle. The value is ready to be read by

the application logic.

rx_oob_out_lane_status[L:0]

Output

Lane status bits received from an upstream out-of-band TX block on

rc_oob_in_fc_data

Width is the number of lanes (L = num_lanes – 1).

rx_oob_out_link_status

Output

Link status bit received from an upstream out-of-band TX block on

rc_oob_in_fc_data

rx_oob_out_status_error

Output

Indicates corrupt lane or link status. A new value is present on at least

one of

rx_oob_out_lane_status

rx_oob_out_link_status

in the current

rx_oob_in_sys_clk

cycle, but the value has at least

one CRC-4 error.

rx_oob_out_calendar[15:0]

Output

Calendar bits received from an upstream out-of-band TX block on

rc_oob_in_fc_data

rx_oob_out_calendar_update

Output

Indicates a new value without CRC-4 errors is present on

rx_oob_out_calendar

in the current

rx_oob_in_sys_clk

cycle.

The value is ready to be read by the application logic.

rx_oob_out_calendar_error

Output

Indicates corrupt calendar bits. A new value is present on

rx_oob_out_calendar

in the current

rx_oob_in_sys_clk

cycle,

but the value has at least one CRC-4 error.

Note to Table 5–10:

(1) Altera recommends that you run

rx_oob_in_sys_clk

at 200 MHz, to support the recommended (and maximum allowed)

rx_oob_in_fc_clk

frequency of 100 MHz.

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 89 90

Kommentare zu diesen Handbüchern

Keine Kommentare

Altera Interlaken MegaCore Function Bedienungsanleitung Seite 61

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Messgeräte Altera Interlaken MegaCore Function