Intel IXF1104 manual SerDes Register Overview, TX Driver Power Level Ports 0 3 $0x784

IXF1104 4-Port Gigabit Ethernet Media Access Controller

8.4.10SerDes Register Overview

Table 149 through Table 152 “Clock and Interface Mode Change Enable Ports 0 - 3 ($0x794)” on page 220 define the contents of the SerDes registers at base location 0x780, which contain the control and status for the four SerDes interfaces on the IXF1104.

Table 149. TX Driver Power Level Ports 0 - 3 ($0x784)

Bit	Name	Description	Type	Default
Register Description: Allows selection of various programmable drive strengths on each
SerDes port. Refer to Section 5.6.2.2, “Transmitter Programmable Driver-Power Levels” on				0x0000dddd
page 103.
31:16	Reserved	Reserved	RO	0x0000
15:12	DRVPWR3[3:0]	Encoded input that sets Power Level for Port 3	R/W	1101
11:8	DRVPWR2[3:0]	Encoded input that sets Power Level for Port 2	R/W	1101
7:4	DRVPWR1[3:0]	Encoded input that sets Power Level for Port 1	R/W	1101
3:0	DRVPWR0[3:0]	Encoded input that sets Power Level for Port 0	R/W	1101

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 150. TX and RX Power-Down ($0x787)

Bit	Name	Description	Type	Default
Register Description: TX and RX power-down bits to allow per-port power-down of unused				0x00000000
ports
31:14	Reserved	Reserved	RO	0x0000000
13:10	TPWRDWN[3:0]	TX power-down for Ports 3-0 (1 = Power-down)	R/W	0000
9:4	Reserved	Reserved	RO	0x00
3:0	RPWRDWN[3:0]	RX Power-down for Ports 3-0 (1 = Power-down)	R/W	0000

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 151. RX Signal Detect Level Ports 0 - 3 ($0x793)

Bit	Name	Description		Type1	Default
Register Description: This register shows the status of the Rx input in relation to the level of					0x00000000
the signal being received from the line. This register is meant for debug and test use.
31:4	Reserved	Reserved		RO	0x0000000
		Signal Detect for Ports 0-3
3:0	SIGDET[3:0]	0 =	Noise	RO	0x0
		1 =	Signal

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 219

Document Number: 278757

Revision Number: 007

Revision Date: March 25, 2004