VSC8541-02 datasheet(39/101 Pages) MICROCHIP

39 / 101 page

Registers

VMDS-10513 VSC8541-02 Datasheet Revision 4.1

A register with an E and a number attached (such as 27E1) means it is a register contained within

extended register page number 1. A register with a G attached (such as 13G) means it is a GPIO page

Bit numbering follows the IEEE standard with bit 15 being the most significant bit and bit 0 being the least

significant bit.

4.2

IEEE 802.3 and Main Registers

In the VSC8541-02 device, the page space of the standard registers consists of the IEEE 802.3 standard

registers and the Microsemi standard registers. The following table lists the names of the registers

associated with the addresses as specified by IEEE 802.3.

The following table lists the names of the registers in the main page space of the device. These registers

are accessible only when register address 31 is set to 0x0000.

Table 19 •

IEEE 802.3 Registers

Address

Name

Mode Control

Mode Status

PHY Identifier 1

PHY Identifier 2

Auto-negotiation Advertisement

Auto-negotiation Link Partner Ability

Auto-negotiation Expansion

Auto-negotiation Next-Page Transmit

Auto-negotiation Link Partner Next-Page Receive

1000BASE-T Control

1000BASE-T Status

11–12

Reserved

MMD EEE Access

MMD Address or Data Register

1000BASE-T Status Extension 1

Table 20 •

Main Registers

Address Name

100BASE-TX status extension

1000BASE-T status extension 2

Bypass control

Error Counter 1

Error Counter 2

Error Counter 3

Extended control and status

Extended PHY control 1

Extended PHY control 2

Interrupt mask

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