Intel IXF1104 manual Global Status and Configuration Register Overview, Port Enable $0x500

Intel® IXF1104 4-Port Gigabit Ethernet Media Access Controller

8.4.5Global Status and Configuration Register Overview

Table 103 through Table 112 “JTAG ID ($0x50C)” on page 192 provide an overview for the Global Control and Status Registers.

Table 103. Port Enable ($0x500)

Bit	Name	Description		Type*	Default
Register Description: A control register for each port in the IXF1104 MAC. Port ID = bit
position in the register. To make a port active, the bit must be set High. For example, Port 2					0x00000000
active implies a register value of 0000.0100. Setting the bit to 0 de-asserts the enable. The
default state for this register is for all four ports to be disabled.
31:4	Reserved	Reserved		RO	0x0000000
		Port 3
3	Port 3 Enable	0 =	Disable	R/W	0
		1 =	Enable
		Port 2
2	Port 2 Enable	0 =	Disable	R/W	0
		1 =	Enable
		Port 1
1	Port 1 Enable	0 =	Disable	R/W	0
		1 =	Enable
		Port 0
0	Port 0 Enable	0 =	Disable	R/W	0
		1 =	Enable

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 104. Interface Mode ($0x501)

Bit	Name	Description		Type1	Default
Register Description: If_Mode – Four bits of this register determines the PHY interface
mode.
0 = Fiber (SerDes/OMI interface)
1 = Copper (GMII or RGMII interface)
Changes to the data setting of this register must be made in conjunction with the “Clock and					0x00000000
Interface Mode Change Enable Ports 0 - 3 ($0x794)" to ensure a safe transition to a new
operational mode (see Section 6.1, “Change Port Mode Initialization Sequence” on page 130).
The Enable clock mode change bit has to be set back to 1 after the configuration change takes
effect.
31:4	Reserved	Reserved		RO	0x0000000
3	Port 3 Interface Mode	0 =	Fiber mode	R/W	0
		1 =	Copper mode
2	Port 2 Interface Mode	0 =	Fiber mode	R/W	0
		1 =	Copper mode
1	Port 1 Interface Mode	0 =	Fiber mode	R/W	0
		1 =	Copper mode
0	Port 0 Interface Mode	0 =	Fiber mode	R/W	0
		1 =	Copper mode

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

Datasheet 188

Document Number: 278757

Revision Number: 009

Revision Date: 27-Oct-2005