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IXF1104 4-Port Gigabit Ethernet Media Access Controller
166 Datasheet
Document Number: 278757
Revision Number: 007
Revision Date: March 25, 2004
Table 82. MAC IF Mode and RGMII Speed ($ Port_Index + 0x10)
Bit Name Description Type
1
Default
Register Description – MAC IF Mode:
Determines the MAC operation frequency and mode
per port.
Changes to the data setting of this register must be made in conjunction with the “Clock and
Interface Mode Change Enable Ports 0 - 3 ($0x794)" to ensure a safe transition to a new
operational mode. Changes to this register must follow a proper sequence. Refer to Section
6.1, “Change Port Mode Initialization Sequence” on page 129 for the proper sequence for
changing the port mode and speed.
0x00000003
31:3 Reserved Reserved R 0x00000000
2:0 Port Mode
These bits are used to define the clock mode and
the RGMII/GMII mode of operation.
000 = Reserved
001 = Reserved
010 = GMII 1000 Mbps operation
011 = Reserved
100 = RGMII 10 Mbps operation
101 = RGMII 100 Mbps operation
11x = RGMII 1000 Mbps operation
R/W 011
1. RO = Read Only, No clear on Read; R = Read, Clear on Read; W = Write only; R/W = Read/Write, No
clear; R/W/C = Read/Write, Clear on Write
Table 83. Flush TX ($ Port_Index + 0x11)
Bit Name Description Type
1
Default
Register Description:
Used to flush all TX data. It is used if all traffic sent to a port should be
stopped.
0x00000000
31:1 Reserved Reserved R 0x00000000
0Flush TX
This bit flushes all TX data and is used if all the
traffic sent to a port should be stopped.
R/W 0
1. RO = Read Only, No clear on Read; R = Read, Clear on Read; W = Write only; R/W = Read/Write, No
clear; R/W/C = Read/Write, Clear on Write