Chapter 5. Application Support; Reference Register Descriptions - Lattice Semiconductor 10 Gb+ Ethernet MAC IP User Manual

This chapter gives application support information for the 10 Gb+ Ethernet MAC IP core.

Reference Register Descriptions

There are no registers in this IP core. All control and status information is passed between the core and the top
level of the device through individual I/O ports on the core. Registers must be added to the top level to control and
monitor these ports. This appendix describes all the registers needed to control and monitor the 10 Gb+ MAC IP
core and the test logic at the top level. Unused bits of all the registers cannot be written. When read, the unused
bits return a value of zero. The default values of the registers are restored when the core is reset.
All the registers except the MODE register should be written only after disabling the MAC. All of the registers can
be read at any time.
Table 5-1. 10 Gb+ Ethernet MAC IP Core Internal Registers
Register Description
Version Register
Mode Register
Transmit Control Register
Receive Control Register
Maximum Packet Size Register
Maximum Packet Size Register
Inter Packet Gap
MAC Address 0
MAC Address 1
MAC Address 2
MAC Address 3
MAC Address 4
MAC Address 5
Transmit Receive Status Register
VLAN tag Length/Type Register
VLAN tag Length/Type Register
Multicast_table_0
Multicast_table_1
Multicast_table_2
Multicast_table_3
Multicast_table_4
Multicast_table_5
Multicast_table_6
Multicast_table_7
Pause Opcode
Pause Opcode
Test Control Register
MAC Control Register
Pause Time Register
Pause Time Register
IPUG39_02.9, December 2010
Application Support
Internal Registers
Mnemonic
VERID
MODE
TX_CTL
RX_CTL
MAX_PKT_SIZE_0
MAX_PKT_SIZE_1
IPG_VAL
MAC_ADDR_0
MAC_ADDR_1
MAC_ADDR_2
MAC_ADDR_3
MAC_ADDR_4
MAC_ADDR_5
TX_RX_STS
VLAN_TAG_0
VLAN_TAG_1
MC_TAB_0
MC_TAB_1
MC_TAB_2
MC_TAB_3
MC_TAB_4
MC_TAB_5
MC_TAB_6
MC_TAB_7
PAUS_OP_0
PAUS_OP_1
TSTCNTL
MACCNTL
PAUSTMR_0
PAUSTMR_1
25 10 Gb+ Ethernet MAC IP Core User's Guide
Chapter 5:
I/O Address Reset Value
A00H X1H
A01H 00H
A02H 00H
A03H 00H
A04H 05H
A05H EEH
A06H 01H
A07H 00H
A08H 00H
A09H 00H
A0AH 00H
A0BH 00H
A0CH 00H
A0DH 00H
A0EH 00H
A0FH 00H
A10H 00H
A11H 00H
A12H 00H
A13H 00H
A14H 00H
A15H 00H
A16H 00H
A17H 00H
A18H 00H
A19H 01H
B00H 02H
B01H 00H
B02H 04H
B03H FFH