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Part: Am79C873/KC
Category:
Communication
-> Network
-> SONET/SDH/ATM/DS3/PHYs/E3 (T3/E3)
Description: Netphy(tm) -1 10/100mb Per Second Ethernet Physical Layer Single-chip Transceiver
Company: Advanced Micro Systems, Inc.
Datasheet: Download Am79C873/KC datasheet File size : 1108 kB
Request For quote: Find where to buy Am79C873/KC
Datasheet text preview:
D
P
RELIMINARY
Am79C873
NetPHYTM -1 10/100 Mbps Ethernet Physical Layer Single-Chip Transceiver with 100BASE-FX Support ISTINCTIVE CHARACTERISTICS
s 100BASE-FX direct interface to industry standard electrical/optical transceivers s 10/100BASE-TX physical-layer, single-chip transceiver s Compliant with the IEEE 802.3u 100BASE-TX standard s Compliant with the ANSI X3T12 TP-PMD 1995 standard s Compliant with the IEEE 802.3u AutoNegotiation protocol for automatic link type selection s Supports the MII with serial management interface s Supports Full Duplex operation for 10 Mbps and 100 Mbps s High performance 100 Mbps clock generator and data recovery circuitry s Adaptive equalization circuitry for 100 Mbps receiver s Controlled output edge rates in 100 Mbps s Supports a 10BASE-T interface without the need for an external filter s Provides Loopback mode for system diagnostics s Includes flexible LED configuration capability s Digital clock recovery circuit using advanced digital algorithm to reduce jitter s Low-power, high-performance CMOS process s Available in a 100-pin PQFP package
GENERAL DESCRIPTION
The NetPHY-1 device is a physical-layer, single-chip, low-power transceiver for 100BASE-TX, 100BASE-FX, and 10BASE-T operations. On the media side, it provides a direct interface to Fiber Media for 100BASE-FX Fast Ethernet, Unshielded Twisted Pair Category 5 C a bl e (UTP5) for 100BASE-TX Fast Ethernet, or UTP5/UTP3 Cable for 10BASE-T Ethernet. Through the IEEE 802.3u Media Independent Interface (MII), the NetPHY-1 device connects to the Medium Access Control (MAC) layer, ensuring a high interoperability among products from different vendors. The NetPHY-1 device uses a low-power, high-performance CMOS process. It contains the entire physical layer functions of 100BASE-FX and 100BASE-TX as defined by the IEEE 802.3u standard, including the Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA), 100BASE-TX Twisted Pair Physical M e d i u m Dependent (TP-PMD) sublayer, and a 10BASE-T Encoder/Decoder (ENDEC). The NetPHY-1 device provides strong support for the Auto-Negotiation function utilizing automatic media speed and protocol selection. The NetPHY-1 device incorporates an internal wave-shaping filter to control rise/fall time, eliminati n g the need for external filtering on the 10/100 Mbps signals.
This document contains information on a product under development at Advanced Micro Devices. The information is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed product without notice.
Publication# 22164 Rev: A Amendment/+2 Issue Date: February 1999
Refer to AMD's Website (www.amd.com) for the latest information.
PRELIMINARY
BLOCK DIAGRAM
25M OSCI
LED1-4
TX CGM
LED Driver PECL Driver FXTD± 100TXD±
4B/5B Encoder
Scrambler
Parallel to Serial
NRZ to NRZI
NRZI to MLT-3
MLT-3 Driver
Rise/Fall Time CTL 25M CLK 125M CLK MII Signals MII Interface/ Control
4B/5B Decoder
Codegroup Alignment
Descrambler
Serial to Parallel
NRZI to NRZ RX CRM
MLT-3 to NRZI
Adaptive EQ
RXI±
Digital Logic
PECL Receiver RX TX
FXRD± FXSD+ RXI± 10TXD±
10BASE-T Module
Register
Collision Detection
Carrier Sense
AutoNegotiation
22164A-1
2
Am79C873
PRELIMINARY
CONNECTION DIAGRAM
RPTR/NODE
OPMODE3
10BTSER
BPALIGN
PHYAD4
PHYAD3
PHYAD1
PHYAD0
BP4B5B
BPSCR
TESTMODE 82
OPMODE2
OPMODE1
OPMODE0
PHYAD2
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
DGND
DVcc
85
84
83
AVcc FXSDFXSD+ FXRDFXRD+ AGND AVcc AVcc RXIRXI+ AGND AGND 10TXO10TXO+ AVcc AVcc AGND AGND FXTDFXTD+ AVcc AVcc AGND AGND 100TXO100TXO+ AVcc AVcc OSCI/X1 X2
81
RESET
AGND
AGND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
RX_EN RX_ER/RXD4 RX_DV COL CRS RX_CLK DVcc DGND RXD0 RXD1 RXD2 RXD3 DVcc DGND MDIO MDC TX_CLK TX_EN DVcc DGND TXD0 TXD1 TXD2 TXD3 TX_ER/TXD4 TXLED RXLED LINKLED DGND COLLED
Am79C873/KC NetPHY-1
RX_LOCK
SPEED10
OSC/XTL
LINKSTS
CLK25M
FDXLED
TRIDRV
BGREF
BGRET
AVcc
DGND
DGND
DGND
DGND
DVcc
AGND
AGND
DVcc
UTP
NC
22164A-2
Am79C873
3
PRELIMINARY
ORDERING INFORMATION Standard Products
AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed by a combination of the elements below. Am79C873 K C \W
ALTERNATE PACKAGING OPTION \W = Trimmed and formed in a tray TEMPERATURE RANGE C = Commercial (0°C to +70°C) PACKAGE TYPE K = Plastic Quad Flat Pack (PQR100) SPEED OPTION Not Applicable DEVICE NUMBER/DESCRIPTION Am79C873 N e t P H Y- 1 TM 10/100 Mbps Ethernet Physical Layer Single-Chip Transceiver with 100BASE-FX Support Valid Combinations Valid Combinations Am79C873 KC\W Valid Combinations list configurations planned to be suppor ted in volume for this device. Consult the local AMD sales office to confirm availability of specific valid combinations and to check on newly released combinations.
4
Am79C873
PRELIMINARY
RELATED AMD PRODUCTS
Part No. Controllers Am79C90
Description
CMOS Local Area Network Controller for Ethernet (C-LANCETM)
Integrated Controllers Am79C930 Am79C940 Am79C961A Am79C965A Am79C970A Am79C971 Am79C972 Am79C973/ Am79C975 Am79C978 PCnetTM-Mobile Single Chip Wireless LAN Media Access Controller Media Access Controller for Ethernet (MACETM) PCnet-ISA II Full Duplex Single-Chip Ethernet Controller for ISA Bus PCnet-32 Single-Chip 32-Bit Ethernet Controller for 486 and VL Buses PCnet-PCI II Full Duplex Single-Chip Ethernet Controller for PCI Local Bus PCnet-FAST Single-Chip Full Duplex 10/100 Mbps Ethernet Controller for PCI Local Bus PCnet-FAST+ Enhanced 10/100 Mbps PCI Ethernet Controller with OnNow Support PCnet-Fast III Single-chip 10/100 Mbps PCI Ethernet Controller With Integrated PHY PCnet-Home Single-chip 1/10 Mbps PCI Home networking Controller
Physical Layer Devices (Single-Port) Am7996 Am79761 Am79C98 Am79C100 IEEE 802.3/Ethernet/Cheapernet Transceiver Physical Layer 10-Bit Transceiver for Gigabit Ethernet (GigaPHYTM-SD) Twisted Pair Ethernet Transceiver (TPEX) Twisted Pair Ethernet Transceiver Plus (TPEX+)
Physical Layer Devices (Multi-Port) Am79C871 Am79C988A Am79C989 Quad Fast Ethernet Transceiver for 100BASE-X Repeaters (QFEXrTM) Quad Integrated Ethernet Transceiver (QuIETTM) Quad Ethernet Switching Transceiver (QuESTTM)
Integrated Repeater/Hub Devices Am79C981 Am79C982 Am79C983 Am79C984A Am79C985 Am79C987 Integrated Multiport Repeater Plus (IMR+) Basic Integrated Multiport Repeater (bIMR) Integrated Multiport Repeater 2 (IMR2TM) Enhanced Integrated Multiport Repeater (eIMRTM) Enhanced Integrated Multiport Repeater Plus (eIMR+TM) Hardware Implemented Management Information Base (HIMIBTM)
Am79C873
5
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