DP83848IVV

Part: DP83848 — National Semiconductor

Type: Single 10/100 Mb/s Ethernet Transceiver

Description: Single 10/100 Mb/s Ethernet Physical Layer device featuring an intelligent Energy Detect mode for low power consumption when not connected to an active link partner.

Features:

• Low power consumption through Energy Detect mode.
• Automatic entry into a low power state when no MDI activity is detected.
• Automatic power up to a fully functioning state upon detection of activity.
• Continuous monitoring of transmit and receive cable pairs in low power state.
• Registers accessible via serial management interface (MDC/MDIO) in Energy Detect state.
• Periodically transmits pulses to allow a powered-down link partner to power up.
• Configurable automatic or manual power up and power down sequences.
• Configurable transmit burst operation (single pulse or burst of 4).
• Configurable error count threshold for noise averaging.
• Configurable data count threshold for robust operation (recommended maximum value 0xf).
• Operates with or without Auto-MDIX mode.
• Can signal interrupts on Energy Detect events or errors.

Applications:

• Applications where power consumption is a consideration.