Altera Triple Speed Ethernet MegaCore Function - Manual (Page 84)

6 Configuration Register Space
2014.06.30
UG-01008 Subscribe Send Feedback
MAC Configuration Register Space
Use the registers to configure the different aspects of the MAC function and retrieve its status and statistics
counters.
In multiport MACs, a contiguous register space is allocated for all ports and accessed via the Avalon-MM
control interface. For example, if the register space base address for the first port is 0x00, the base address
for the next port is 0x100 and so forth. The registers that are shared among the instances occupy the register
space of the first port. Updating these registers in the register space of other ports has no effect on the
configuration.
Table 6-1: Overview of MAC Register Space
Description Section Dword Offset
Base registers to configure the MAC function. At the minimum,
you must configure the following functions:
• Primary MAC address (
mac_0
/
mac_1
)
• Enable transmit and receive paths (
TX_ENA
and
RX_ENA
bits
in the
command_config
register)
The following registers are shared among all instances of a
multiport MAC:
•
rev
•
scratch
• frm_length
•
pause_quant
•
mdio_addr0
and
mdio_addr1
• tx_ipg_length
For more information about the base configuration registers,
refer to
Base Configuration Registers (Dword Offset 0x00 –
0x17) on page 6-3.
Base Configuration 0x00 – 0x17
Counters collecting traffic statistics. For more information about
the statistics counters, refer to
Statistics Counters (Dword Offset
0x18 – 0x38) on page 6-11.
Statistics Counters 0x18 – 0x38
ISO
9001:2008
Registered
© 2014 Altera Corporation. All rights reserved. ALTERA, ARRIA, CYCLONE, ENPIRION, MAX, MEGACORE, NIOS, QUARTUS and STRATIX words
and logos are trademarks of Altera Corporation and registered in the U.S. Patent and Trademark Office and in other countries. All other
words and logos identified as trademarks or service marks are the property of their respective holders as described at
www.altera.com/common/legal.html . Altera warrants performance of its semiconductor products to current specifications in accordance with
Altera's standard warranty, but reserves the right to make changes to any products and services at any time without notice. Altera assumes
no responsibility or liability arising out of the application or use of any information, product, or service described herein except as expressly
agreed to in writing by Altera. Altera customers are advised to obtain the latest version of device specifications before relying on any published
information and before placing orders for products or services.
www.altera.com
101 Innovation Drive, San Jose, CA 95134