CS8900A Crystal LAN® 10Base-T Embedded Ethernet Controller
138Pages

'CIRRUS LOGIC CS8900A Product Data Sheet FEATURES Single-Chip IEEE 802.3 Ethernet Controller with Direct ISA-Bus Interface Օ Maximum Current Consumption = 55 mA (5V Supply) 3 V or 5 V Operation Օ Industrial Temperature Range Comprehensive Suite of Software Drivers Available Օ Efficient PacketPage Architecture Operates in I/O and Memory Space, and as DMA Slave ٕ Full Duplex Operation On-Chip RAM Buffers Transmit and Receive Frames Օ 10BASE-T Port with Analog Filters, Provides: - Automatic Polarity Dtection and Correction AUI Port for 10BASE2, 10BASE5 and 10BASE-F 镕 Programmable Transmit Features: - Automatic Re-transmission on Collision - Automatic Padding and CRC Gnration 驕 Programmable Receive Features: - Stream Transfer for Reduced CPU Overhead - Auto-Switch Between DMA and On-Chip Memory - Early Interrupts for Frame Pre-Processing - Automatic Rejection of Erroneous Packets ٕ EEPROM Support for Jumperless Configuration Boot PROM Support for Diskless Systems Օ Boundary Scan and Loopback Test LED Drivers for Link Status and LAN Activity Օ Standby and Suspend Sleep Modes Crystal LAN Ethernet Controller DESCRIPTION The CS8900A is a low-cost Ethernet LAN Controller op-timized for the Industry Standard Architecture (ISA) bus and general purpose microcontroller busses. Its highly-integrated design eliminates the need for costly external components required by other Ethernet controllers. The CS8900A includes on-chip RAM, 10BASE-T transmit and receive filters, and a direct ISA-Bus interface with 24 mA Drivers. In addition to high integration, the CS8900A offers a broad range of performance features and configura-tionoptions. Its unique PacketPage architecture automatically adapts to changing network traffic pat-terns and available system resources. The result is increased system efficiency. The CS8900A is available in a 100-pin LQFP package ideally suited for small form-factor, cost-sensitive Ether٭net applications. With the CS8900A, system engineers can design a complete Ethernet circuit that occupies less than 1.5 square inches (10 sq. cm) of board space. ORDERING INFORMATION CS8900A-CQZ 0° to 70° C 5V CS8900A-IQZ -40° to 85° C 5V CS8900A-CQ3Z 0° to 70° C 3.3V CS8900A-IQ3Z -40° to 85° C 3.3V LQFP-100 Lead free LQFP-100 Lead free LQFP-100 Lead free LQFP-100 Lead free CRD8900A-1 Evaluation Kit EEPROM 20 MHz XTAL Hlh CS8900A ISA Ethernet Controller EEPROM Control RAM LED Control Clock 10BASE-T - RX Filters & Receiver 10BASE-T RJ-45 09 m "go ; o I Host Bus Logic IL T Encoder/ Decoder & PLL 10BASE-T TX Filters & Transmitter AUI Transmitter Attachment Unit Interface (AUI) Memory Manager 802.3 MAC Engine Boundary Scan Test Logic Power Manager AUI Collision AUI Receiver DS271F5 Copyright © Cirrus Logic, Inc. 2010 (All Rights Reserved) SEP '10

CS8900A Crystal LAN Ethernet Controller "CIRRUS LOGIC Table 1. Revision History Release Date NOV 1997 Changes PP1 ~PP2~ Preliminary Release, revision 1 DEC 1998 Preliminary Release, revision 2 Preliminary Release, revision 3 PP3 MAR 1999 PP4 APR 2001 Preliminary Release, revision 4 Page 13: INTRQ[0:2] changed to INTRQ[0..3] Page 41: Added bit definitions for Revisions C and D Page 56: PacketPage base + 0218h changed to PacketPage base + 0128h Page 81 : Table 19: Register 5, LRxCTL changed to Register 5, RxCTL Page 86: Table 23: 0410h to 011h changed to 0410h to 0411h F1 JAN 2004 Final...

CS8900A Crystal LAN Ethernet Controller 1.0 INTRODUCTION 1.1 General Description The CS8900A is a true single-chip, full-duplex, Ethernet solution, incorporating all of the ana-log and digital circuitry needed for a complete Ethernet circuit. Major functional blocks in-clude: a direct ISA-bus interface; an 802.3 MAC engine; integrated buffer memory; a seri-al EEPROM interface; and a complete analog front end with both 10BASE-T and AUI. 1.1.1 General Purpose and ISA-Bus Inter٭face Included in the CS8900A is a direct ISA-bus interface with full 24 mA drive capability. Its conͭfiguration...

CS8900A CrystalLAN Ethernet Conlroller CIRRUS LOGIC EEPROM 20 MM* XTAL {2 Osa ri) a 1 c *ٗ! -N CS8900A C <= A n-j -s => RJ-45 10BASE-T v Figure 1. Complרte Ethernet Motherboard Solution high level of intgration allow System Engi-neers to design a complte Ethernet circuit that occupies as little as 1.5 square inches of PCB area (Figure 1). In addition, the CS8900A's power-saving features and CMOS design make it a perfect fit for power-sensitive portable and desktop PCs. Motherboard de騭sign options include: An EEPROM can be used to store node-specific information, such as the Ethernet...

C/RRUS LOGIC - CS8900A Crystal LANי Ethernet Controller On-chip LED ports can be used for either optional LEDs, or as programmable out-puts. 1.3 Key Features and Beneflts 1.3.1 VeryLowCost The CS8900A is designed to provide the low-est-cost Ethernet solution available for embed-ded applications, portable motherboards, non-ISA bus Systems and adapter cards. Cost-sav-ing features include: Օ Integrated RAM limintes the need for ex颭pensive external memory chips. On-chip 10BASE-T filters allow designers to use simple isolation transformers in-stead of more costly filter/transformer packages....

CIRRUS LOGIC CS8900A Crystal LAN Ethernet Controller 2.0 PIN DESCRIPTION ٕ 5 AVSSO CC5 EECS EESK EEDatoOut EEOataln CHɏPSEL DVSS1 DV0O1 DVSSIA DMARQ2 DRACK2 DMARQ1 OMACK1 imiarqo ï 5 CIRRUS LOGIC PRQDU^T_DAJ^SJHEEJ_^^_^^^_^^^^M DS271F5 12

CS8900A Crystal LAN Ethernet Controller ISA Bus Interface SA[0:19] - System Address Bus, Input PINS 37-48, 50-54, 58-60. Lower 20 bits of the 24-bit System Address Bus used to d٩code accesses to CS8900A I/O and Memory space, and attached Boot PROM. SA0-SA15 are used for I/O Read and Write operations. SA0-SA19 are used in conjunction with external decode logic for Memory Read and Write operations. SD[0:15] - System Data Bus, Bi-Directional with 3-State Output PINS 65-68, 71-74, 2724, 21-18. Bi-directional 16-bit System Data Bus used to transfer data between the CS8900A and the host. RESET -...