VSC8601XKN Vitesse Semiconductor Corp, VSC8601XKN Datasheet - Page 32

• Manufacturer Part Number: VSC8601XKN
• Description: IC PHY 10/100/1000 64-EP-LQFP
• Manufacturer: Vitesse Semiconductor Corp
• Type: PHY Transceiverr

Specifications of VSC8601XKN

• Number Of Drivers/receivers: 1/1
• Protocol: Gigabit Ethernet
• Voltage - Supply: 2.5V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP Exposed Pad, 64-eLQFP, 64-HLQFP
• Case: TQFP
• Dc: 06+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 907-1028

Figure 12.
3.13.4
Figure 13.
3.13.5
Figure 14.
Revision 4.1
September 2009
Link Partner
Link Partner
Far-End Loopback
Near-End Loopback
When the near-end loopback testing feature is enabled (by setting the device register
bit 0.14 to 1), data on the transmit data pins (TXD) is looped back onto the device
received data pins (RXD) as illustrated in the following illustration. When using this
testing feature, no data is transmitted over the network.
Near-End Loopback
Connector Loopback
The connector loopback testing feature allows for the twisted pair interface to be looped
back externally. When using this feature, the PHY must be connected to a loopback
connector or a loopback cable. Pair A should be connected to pair B and pair C to
pair D, as shown in the following illustration. The connector loopback feature functions
at all available interface speeds.
Connector Loopback
When using the connector loopback testing feature, the device auto-negotiation, speed,
and duplex configuration is set using device registers 0, 4, and 9. For 1000BASE-T
Cat5
A
B
C
D
Cat5
Cat5
SimpliPHY
RX
TX
RX
TX
SimpliPHY
RXD
TXD
SimpliPHY
MAC
RXD
TXD
RXD
TXD
Functional Descriptions
VSC8601 Datasheet
MAC
MAC
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