VSC8541XMV-05 datasheet(59/101 Pages) MICROCHIP

Part #	VSC8541XMV-05

Description	Single Port Gigabit Ethernet Copper PHY with GMII/RGMII/MII/RMII Interfaces

PDF	101 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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Registers

VMDS-10513 VSC8541-02 Datasheet Revision 4.1

the signal quality. Changing these settings also affects the linearity and harmonic distortion of the

transmitted signals. For help with changing these values, contact your Microsemi representative.

Table 58 •

Cu PMD Transmit Control, Address 16E2 (0x10)

Bit

Name

Access Description

Default

15:12 1000BASE-T signal amplitude trim1

R/W

Sticky bit.

1000BASE-T signal

amplitude

0000: 1.8%

0001: 2.7%

0010: 3.6%

0011: 4.5%

0100: 5.4%

0101: 6.3%

0110: 7.2%

0111: 8.1%

1000: –8%

1001: –6.2%

1010: –4.4%

1011: –2.7%

1100: –1.8%

1101: –0.9%

1110: 0%

1111: 0.9%

0000

11:8

100BASE-TX signal amplitude trim2

R/W

Sticky bit.

100BASE-TX signal

amplitude

0000: 1.8%

0001: 2.7%

0010: 3.6%

0011: 4.5%

0100: 5.4%

0101: 6.3%

0110: 7.2%

0111 8.1%

1000: –8%

1001: –6.2%

1010: –4.4%

1011: –2.7%

1100: –1.8%

1101: –0.9%

1110: 0%

1111: 0.9%

0010

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