VSC8601XKN Vitesse Semiconductor Corp, VSC8601XKN Datasheet - Page 24

• 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 7.
3.10.1
Revision 4.1
September 2009
The following illustration shows the relationship between ActiPHY states and timers.
ActiPHY State
Low-Power State
In the low-power state, all major digital blocks are powered down. However, the
following functionality is provided:
•
•
In this state, the PHY monitors the media interface pins for signal energy. The PHY
comes out of low-power state and transitions to the normal operating state when signal
energy is detected on the media. This happens when the PHY is connected to one of the
following:
•
•
•
In the absence of signal energy on the media pins, the PHY transitions from the
low-power state to the LP wake-up state periodically based on the programmable sleep
timer (register bits 20E.14:13). The actual sleep time duration is randomized from
–80 ms to +60 ms to avoid two linked PHYs in ActiPHY Mode entering a lock-up state
during operation.
Signal Sent
SMI interface (MDC, MDIO, MDINT)
CLKOUT
Auto-negotiation capable link partner
Auto-negotiation incapable (blink/forced) link partner (100BASE-TX or 10BASE-T)
Another PHY in ActiPHY LP wake-up state
FLP Burst
LP Wake-up
State
Sleep Timer Expires
Low-Power State
Timeout Timer Expires and
Auto-Negotiation Enabled
Signal Energy Detected on
Media
Operation
Normal
Functional Descriptions
VSC8601 Datasheet
Page 24