VSC8658 datasheet(51/95 Pages) MICROSEMI

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Configuration

VMDS-10242 VSC8658 Datasheet Revision 4.1

5.2.24

LED Mode Select

The device LED outputs are controlled using the bits in register 29 of the main register space. The

following table shows the information you need to access the functionality of each of the outputs. For

information about the LED modes referenced in the table, see Table 34, page 43.

The following table shows the LED functional modes that can be programmed into any of the device’s

LED outputs. For more information about accessing or reading the status of the outputs, see Table 33,

page 43.

1:0

Reserved

Table 33 •

LED Mode Select, Address 29 (0x1D)

Bit

Name

Access

Description

Default

15:12

LED3 mode select

R/W

This is a sticky bit.

Select from LED modes 0 through 15.

CMODE

11:8

LED2 mode select

R/W

This is a sticky bit.

Select from LED modes 0 through 15.

CMODE

7:4

LED1 mode select

R/W

This is a sticky bit.

Select from LED modes 0 through 15.

CMODE

3:0

LED0 mode select

R/W

This is a sticky bit.

Select from LED modes 0 through 15.

CMODE

Table 34 •

Available LED Mode Settings

Bit Setting

LED Indicates

0000

Link/activity, Mode 0

0001

Link1000/activity, Mode 1

0010

Link100/activity, Mode 2

0011

Link10/activity, Mode 3

0100

Link100/1000/activity, Mode 4

0101

Link10/1000/activity, Mode 5

0110

Link10/100/activity, Mode 6

0111

Link100BASE-FX/1000BASE-X/activity, Mode 7

1000

Duplex/collision, Mode 8

1001

Collision, Mode 9

1010

Activity, Mode 10

1011

100BASE-FX/1000BASE-X/fiber activity, Mode 11

1100

Auto-negotiation fault, Mode 12

1101

Serial mode (on LED0 and LED1 on PHY0 only), Mode 13

1110

Force LED off, Mode 14

1111

Force LED on, Mode 15

Table 32 •

Auxiliary Control and Status, Address 28 (0x1C) (continued)

Bit

Name

Access

Description

Default

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