LAN8720i SMSC [SMSC Corporation], LAN8720i Datasheet - Page 11

• Manufacturer Part Number: LAN8720i
• Description: Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
• Manufacturer: SMSC [SMSC Corporation]

Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720/LAN8720i
CRS_DV
TXD[1:0]
RXD[1:0]
MODE0
MODE1
MODE2
RXER
TXEN
MDIO
nRST
MDC
MODE Control
Control
Reset
SMI
100M Rx
10M Rx
Logic
Logic
Receive Section
Figure 1.2 LAN8720/LAN8720i Architectural Overview
Management
Negotiation
Control
Auto-
Data Recovery
DSP System:
Equalizer
10M PLL
Clock
100M Tx
DATASHEET
10M Tx
Logic
Logic
Transmit Section
100M PLL
11
Analog-to-
Squelch &
Digital
Filters
Transmitter
Transmitter
100M
10M
Control
MDIX
HP Auto-MDIX
LED Circuitry
Generator
Address
Latches
Interrupt
Central
PLL
PHY
Bias
Revision 1.0 (05-28-09)
RXP / RXN
TXP / TXN
nINT
LED1
LED2
RBIAS
XTAL1/CLKIN
XTAL2
PHYAD0