VSC8211XVW Vitesse Semiconductor Corp, VSC8211XVW Datasheet - Page 56

• Manufacturer Part Number: VSC8211XVW
• Description: IC PHY 10/100/1000 SGL 117-LBGA
• Manufacturer: Vitesse Semiconductor Corp
• Type: PHY Transceiverr

Specifications of VSC8211XVW

• Number Of Drivers/receivers: 1/1
• Protocol: Gigabit Ethernet
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 117-LBGA
• Case: BGA
• Dc: 07+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 907-1023

In addition to function selection, several options are available for the LED outputs through the use of MII register 27.5:0. These
are summarized below:
14.1 Serial LED Output
A serial output option is available which allows access to all LED signals through two pins. This option is selected by setting
LED Pin 0 configuration bits to 01 on the PHY. In this mode, LED pins 1 and 2 function as serial data and clock. LED function
outputs for the PHY are clocked out on the rising edge of data clock. The clock rate is approximately 1MHz, with a 37 clock
cycle preamble.
The serial bitstream outputs each LED signal as described by the numbered list below.The individual signals shall be clocked
out in the following order:
VMDS-10105 Revision 4.1
October 2006
Reg Bits
MII
5:4
3
2
1
0
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Fault
11. Fiber/Copper
Link1000/Act
Link/Act
Link100/Act
Act
Link10/Act
Dup/Col
Tx
Col
Rx
LED Blink/Pulse-Stretch Rate
LED pulse-stretch/blink
LED Pulsing Enable
LED combine LINK with ACT
LED combine COL with DUP
LED Option Bits
Table 22. LED Output Options
Value
10
01
00
11
1
0
1
0
1
0
1
0
56 of 165
2.5Hz blink rate/ 400 ms pulse-stretch
20Hz blink rate/ 50ms pulse-stretch
10Hz blink rate/ 100ms pulse-stretch
5Hz blink rate/ 200ms pulse-stretch
Collision, Activity, Rx and Tx LED outputs will be pulse-
stretched when active
Collision, Activity, Rx and Tx LED outputs will blink when active
When active, LED outputs will be pulsed at 5KHz, 20% duty
cycle for power savings
When active, LED outputs will remain at a static low
Link LEDs indicate link status only
Link LEDs will blink or flash when activity is present. Blink/flash
behavior is selected by Pulse-Stretch Enable bit.
Duplex LED indicates duplex status only
Duplex LED will blink or flash when collision is present. Blink/
flash behavior is selected by Pulse-Stretch Enable bit.
LED Function Selection
Datasheet
VSC8211