USB to Fast Ethernet/HomePNA Controller

www.DataSheet4U.com AX88172 L USB to Fast Ethernet/HomePNA Controller USB to Fast Ethernet/HomePNA Controller Document No.: AX172-4/ V1.4 / DEC, 20/02 Features Single chip USB to 10/100Mbps Fast Ethernet and 1/10Mbps HomePNA and HomePlug Network Controller • Compliant with USB specification 1.0 and 1.1 and 2.0 • Full/High Speed USB Device with bus power capability • Support 4 endpoints on USB • IEEE 802.3u 100BASE-T, TX, and T4 Compatible • Embedded 7K*16 bit SRAM, 256*16 bit SRAM and 8 FIFOs • Support both full-duplex or half-duplex operation on Fast Ethernet • Provides a MII port for both Ethernet and HomePNA/ HomePlug PHY interface • • • • • • • • Supports suspended mode and remote wakeup (link_up or magic packet or external pin) Optional PHY power down mode for power saving Support (94c56/93c66) 256/512 bytes serial EEPROM (used for saving USB Descriptors) Support automatic loading of Ethernet ID, USB Descriptors and Adapter Configuration from EEPROM on power-on initialization External PHY loop-back diagnostic capability Small form factor with 80-pin LQFP package Single 12MHz clock input, pure 3.3V operation *IEEE is a registered trademark of the Institute of Electrical and Electronic Engineers, Inc. *All other trademarks and registered trademark are the property of their respective holders. Product description The AX88172 USB to Fast Ethernet/HomePNA/HomePlug Controller is a high performance and highly integrated Controller with embedded 7K*16 bit SRAM. The AX88172 contains a USB interface to host CPU and compliant with USB Standard V1.0, V1.1 and V2.0. The AX88172 could be used for both 10M/100Mbps Fast Ethernet function based on IEEE802.3 / IEEE802.3u LAN standard and 1M/10M HomePNA standard. The AX88172 supports media-independent interface (MII) to simplify the design on implementing Fast Ethernet and HomePNA functions. System Block Diagram RJ45 RJ11 MAGNETIC MAGNETIC 10/100 Mbps Ethernet PHY/TxRx 1/10 Mbps Home LAN PHY AX88172 EEPROM USB I/F Always contact ASIX for possible updates before starting a design. This data sheet contains new products information. ASIX ELECTRONICS reserves the rights to modify product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. ASIX ELECTRONICS CORPORATION Frist Released Date: Dec/20/2001 http://www.asix.com.tw 2F, NO.13, Industry East Rd. II, Science-based Industrial Park, Hsin-Chu City, Taiwan, R.O.C. FAX: 886-3-579-9558 TEL: 886-3-579-9500 AX88172 CONTENTS PRELIMINARY 1.0 INTRODUCTION....................................................................................................................... 4 1.1 GENERAL DESCRIPTION:............................................................................................................. 4 1.2 AX88172 BLOCK DIAGRAM:...................................................................................................... 4 1.3 AX88172 PIN CONNECTION DIAGRAM....................................................................................... 5 2.0 SIGNAL DESCRIPTION........................................................................................................... 6 3.0 EEPROM MEMORY MAPPING............................................................................................ 9 4.0 USB COMMANDS ................................................................................................................... 11 4.1 USB STANDARD COMMANDS .................................................................................................... 11 4.2 USB VENDOR COMMANDS ....................................................................................................... 12 5.0 USB CONFIGURATION STRUCTURE .............................................................................. 14 5.1 USB CONFIGURATION. ............................................................................................................. 14 5.2 USB INTERFACE....................................................................................................................... 14 5.3 USB ENDPOINTS. ..................................................................................................................... 14 6.0 ELECTRICAL SPECIFICATION AND TIMINGS ............................................................ 15 6.1 ABSOLUTE MAXIMUM RATINGS ............................................................................................... 15 6.2 GENERAL OPERATION CONDITIONS .......................................................................................... 15 6.3 DC CHARACTERISTICS ............................................................................................................. 15 6.4 A.C. TIMING CHARACTERISTICS ............................................................................................... 16 6.4.1 12M_XIN ........................................................................................................................... 16 6.4.2 Reset Timing ...................................................................................................................... 16 6.4.3 MII Timing......................................................................................................................... 17 6.4.4 STATION MANAGEMENT TIMING................................................................................. 18 6.4.5 SERIAL EEPROM TIMING .............................................................................................. 19 7.0 PACKAGE INFORMATION.................................................................................................. 20 APPENDIX A: SYSTEM APPLICATIONS ................................................................................ 21 A.1 USB TO FAST ETHERNET CONVERTER .................................................................................... 21 A.2 USB TO FAST ETHERNET AND/OR HOMELAN COMBO SOLUTION ........................................... 21 DEMONSTRATION CIRCUIT A: AX88172 (ED2 VERSION) + ETHERNET PHY(8201L) ........................................................................................................................................................... 22 DEMONSTRATION CIRCUIT B: AX88172 (ED3 VERSION) + ETHERNET PHY (8201LBL) ........................................................................................................................................ 24 REMARK: ....................................................................................................................................... 26 REVISIONS HISTORY ................................................................................................................. 27 2 ASIX ELECTRONICS CORPORATION AX88172 FIGURES PRELIMINARY FIG – 1 AX88172 BLOCK DIAGRAM ...................................................................................................................................4 FIG – 2 AX88172 PIN CONNECTION DIAGRAM ...................................................................................................................5 TABLES TAB - 1 PIN SIGNALS ..........................................................................................................................................................8 TAB - 2 EEPROM MEMORY MAPPING ..............................................................................................................................9 3 ASIX ELECTRONICS CORPORATION AX88172 PRELIMINARY 1.0 Introduction 1.1 General Description: The AX88172 USB to Fast Ethernet Controller is a high performance and highly integrated USB bus Ethernet Controller with embedded 7K*16 bit SRAM. The AX88172 supported Full/High Speed USB Device with bus power capability. The AX88172 implements both 10Mbps and 100Mbps Ethernet function based on IEEE802.3/ IEEE802.3u LAN standard. The AX88172 supports media-independent interface (MII) to simplify the design on implementing Fast Ethernet and HomePNA functions. AX88172 uses 80-pin LQFP low profile package, 12MHz operation for USB and 25MHz operation for Ethernet, CMOS process with pure 3.3V operation. 1.2 AX88172 Block Diagram: MDC MDIO STA 7K* 16 SRAM Memory Arbiter EECS EECK EEDI EEDO SEEPROM Loader I/F USB to Ethernet Bridge MAC Core MII /IF USB Core and Interface DM/DP Fig – 1 AX88172 Block Diagram 4 ASIX ELECTRONICS CORPORATION AX88172 1.3 AX88172 Pin Connection Diagram The AX88172 is housed in the 80-pin plastic light quad flat pack. PRELIMINARY PHYRSTN PHYRSTP GPIO1 GPIO0 TEST0 GPIO2 TEST1 VDD EEDI EECS EECK EEDO 59 VSS 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 VSS LED VDD NC NC NC NC 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 VDD RST_TYPE NC NC NC NC NC ANA_XIQ VDD CLKI TESTMODE RESET/RESET VSS VDD PVDD PVSS VC EPTEST XIN12M XOUT12M VSS RXDV RXER VDD RXD3 RXD2 RXD1 RXD0 RXCLK VDD TXEN TXD3 TXD2 TXD1 TXD0 CRS TXCLK VBUS COL VDD ASIX AX88172 ED3 34 33 32 31 30 29 28 27 26 25 24 23 22 21 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 R1 AVDD AVSS AVSS Fig – 2 AX88172 Pin Connection Diagram DP AVSS DM AVSS AVDD EXTWAKEUPN NC NC NC NC NC NC VDD MDC MDIO VSS 5 ASIX ELECTRONICS CORPORATION AX88172 PRELIMINARY 2.0 Signal Description The following terms describe the AX88172 pin-out: All pin names with the “/” suffix are asserted low. The following abbreviations are used in following Tables. I O I/O OD Input Output Input/Output Open Drain TYPE I PU PD P Internal Pull Up (100K) Internal Pull Down (100K) Power Pin SIGNAL R1 AVDD AVSS AVSS DP AVSS DM AVSS AVDD /EXTWAKEUP NC NC VDD MDC MDIO NC NC NC NC VSS VDD COL NC TX_CLK CRS TXD[3:0] PIN NO. DESCRIPTION 1 Constant-votage pin A 6.2K± 1% resistors is connected to AVSS. Be sure to make the line between R1 and each resistor