Device Family: Arria® V GT

Device Family: Arria® V GX

Device Family: Arria® V GZ

Device Family: Arria® V ST

Device Family: Stratix® V GS

Device Family: Stratix® V GT

Device Family: Stratix® V GX

Type: Answers

Type: How-To

Area: Intellectual Property


IP Product: 10Gbps Ethernet MAC with 1588 MegaCore

Why does the tx_path_delay_10g_data and tx_path_delay_1g_data signal descriptions refer to a data width of 16/22 for the Arria V and Stratix V devices in the Low Latency Ethernet 10G MAC User Guide?

Description

Due to a mistake in "Table 5-16: IEEE 1588v2 Egress Transmit Signals" of the Altera® Low Latency Ethernet 10G MAC User Guide (PDF) the tx_path_delay_10g_data and tx_path_delay_1g_data signal descriptions refer to a data width of 16/22 for the Arria® V and Stratix® V devices.

tx_path_delay_10g_data tx_path_delay_1g_data signal signals should refer to a data width of 15/21.

Workaround/Fix

This problem will be fixed in a future version of the Low Latency Ethernet 10G MAC User Guide (PDF).