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DP83848M PHYTER® Mini DP83848J PHYTER® Mini LS Commercial Temperature Single Port 10/100 Ethernet Transceiver
October 2006
DP83848M PHYTER® Mini DP83848J PHYTER® Mini LS Commercial Temperature Single Port 10/100 Ethernet Transceiver
General Description Features
The DP83848M/J addresses the quality, reliability and • Low-power 3.3V, 0.18µm CMOS technology small form factor required for space sensitive applications • 3.3V MAC Interface in embedded systems. • Auto-MDIX for 10/100 Mb/s The DP83848M/J offers performance far exceeding the • Energy Detection Mode IEEE specifications, with superior interoperability and industry leading performance beyond 137m of Cat-V • MII Interface cable. The DP83848M/J also offers Auto-MDIX to remove • MII serial management interface (MDC and MDIO) cabling complications. DP83848M/J has superior ESD • IEEE 802.3u Auto-Negotiation and Parallel Detection pro-tection, greater than 4KV Human Body Model, providing extremely high reliability and robust operation, ensur- • IEEE 802.3u ENDEC, 10BASE-T transceivers and filters • IEEE 802.3u PCS, 100BASE-TX transceivers and filters ing a high level performance in all applications. DP83848J offers two flexible LED indicators - one for Link • Integrated ANSI X3.263 compliant TP-PMD physical sublayer with adaptive equalization and Baseline Wander and the other for Speed. compensation A 25MHz clock out that eliminates the need and hence the space and cost, of an additional Media Access Control • Error-free Operation beyond 137 meters (MAC) clock source component is available only in • ESD protection - greater than 4KV Human body model DP83848M. • LED support for Link in DP83848M The DP83848M/J is offered in a tiny 6mm x 6mm LLP 40pin package and is ideal for industrial controls, build- • LED support for Link and Speed in DP83848J ing/factory automation, transportation, test equipment and • Supports system clock from oscillator (Not available in DP83848J) wireless base stations. • Single register access for complete PHY status Applications • 10/100 Mb/s packet BIST (Built in Self Test) • 40 pin LLP package (6mm) x (6mm) x (0.8mm) • Peripheral devices • Mobile devices • Factory and building automation • Basestations
System Diagram
Media Access Controlleroler
Magnetics
MPU/CPU
MII
RJ-45
PHYTER Mini PHYTER Mini LS 10/100 Ethernet Transceiver
10BASE-T or 100BASE-TX
Clock Source
Status LED/s
Typical Ethernet Application
PHYTER® and TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 2006 National Semiconductor Corporation
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DP83848M/J
MII
TXD[3:0]
RXD[3:0]
MDIO
MII INTERFACE
MDC
TX_DATA
TX_CLK
RX_CLK
RX_ER
CRS
RX_DV
TX_EN
RX_DATA
MII 10BASE-T & 100BASE-TX Transmit Block
Auto-Negotiation State Machine
Registers
10BASE-T & 100BASE-TX Receive Block
Clock Generation
DAC
ADC
Auto-MDIX
LED Driver
TD± RD±
REFERENCE CLOCK
LED/S
Figure 1. DP83848T/K Functional Block Diagram
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2
RX_CLK
TX_CLK
SERIAL MANAGEMENT COL
DP83848M/J
Table of Contents
1.0 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 1.1 SERIAL MANAGEMENT INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.2 MAC DATA INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.3 CLOCK INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.4 LED INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.5 RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.6 STRAP OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.7 10 MB/S AND 100 MB/S PMD INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.8 SPECIAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.9 POWER SUPPLY PINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.10 PACKAGE PIN ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.0 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 2.1 AUTO-NEGOTIATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.1.1 Auto-Negotiation Pin Control . . . . . . . . . . . . ..