Maker : ST Microelectronics
Part No. : ST802RT1B

  Datasheet PDF : ST802RT1B.pdf
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Shortcut : ST802RT1A  ST802RT1B 

Product Information

www.DataSheet4U.com ST802RT1A ST802RT1B 10/100 real-time Ethernet 3.3 V transceiver Features ■ IEEE802.3 10Base-T and IEEE802.3u 100Base-TX, 100Base-FX (ST802RT1B only) transceiver Support for IEEE802.3x flow control Provides full-duplex operation in both 100 Mbps and 10 Mbps modes Register bit strap during HW reset Auto MDI-X for 10/100 Mb/s Auto-negotiation Provides loop-back mode for diagnostics Programmable LED display for operating mode and functionality signaling MII / RMII interface MDC / MDIO serial management interface Optimized deterministic latency for real-time Ethernet operation Supports external transformer with turn ratio 1.414:1 on Tx/Rx side Self-termination transceiver for external components and power saving Operation from single 3.3 V supply High ESD tolerance 48-pin LQFP 7 x 7 package Extended temp. range: -40 °C to +105 °C Power dissipation < 315 mW (typ) ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ LQFP48 Building automation Telecom infrastructure Description The ST802RT1x is a high-performance fast Ethernet physical layer interface for 10Base-T, 100Base-TX and 100Base-FX applications. It is designed using advanced CMOS technology to provide MII and RMII interfaces for easy attachment to 10/100 media access controllers (MAC). The ST802RT1x supports the 100BaseTX of IEEE802.3u and 10Base-T of IEEE802.3i and 100Base FX of IEEE 802.3u (B version only). The ST802RT1x supports both half-duplex and full-duplex operation at 10 and 100 Mbps operation. Its operating mode can be set using auto-negotiation, parallel detection or manual control. It allows for the support of autonegotiation functions for speed and duplex detection. The automatic MDI / MDIX feature compensates for the use of a crossover cable. With auto MDIX, the ST802RT1x automatically detects what is on the other end of the network cable and switches the TX & RX pin functionality accordingly. Applications ■ ■ ■ Industrial control Factory automation High-end peripherals Table 1. Device summary Order codes ST802RT1AFR ST802RT1BFR February 2010 Temperature range - 40 to 105 °C - 40 to 105 °C Doc ID 17049 Rev 1 Package LQFP48 LQFP48 1/58 www.st.com 58 Contents www.DataSheet4U.com ST802RT1A, ST802RT1B Contents 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 1.2 1.3 Physical layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 LED display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 3 4 5 6 Device block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 System and block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Registers and descriptors description . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.1 6.2 Register list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7 Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 7.15 100Base-TX transmit operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 100Base-TX receive operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 10Base-T transmit operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 10Base-T receive operation . . . . . . . . . . ...

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