CS8900A
Product Data Sheet
FEATURES
■ Single-Chip IEEE 802.3 Ethernet Controller with
&U\VWDOꢀ/$1™ ISA Ethernet
Controller
Direct ISA-Bus Interface
■
Maximum Current Consumption = 55 mA (5V Supply)
DESCRIPTION
■ 3 V Operation
The CS8900A is a low-cost Ethernet LAN Controller op-
timized for Industry Standard Architecture (ISA)
Personal Computers. Its highly-integrated design elimi-
nates 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.
■ Industrial Temperature Range
■
Comprehensive Suite of Software Drivers Available
■ 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
In addition to high integration, the CS8900A offers a
broad range of performance features and configuration-
■ 10BASE-T Port with Analog Filters, Provides:
— Automatic Polarity Detection and Correction
options.
Its
unique
PacketPage
architecture
■ AUI Port for 10BASE2, 10BASE5 and 10BASE-F
automatically adapts to changing network traffic pat-
terns and available system resources. The result is
increased system efficiency.
■ Programmable Transmit Features:
— Automatic Re-transmission on Collision
— Automatic Padding and CRC Generation
The CS8900A is available in a 100-pin TQFP package-
ideally suited for small form-factor, cost-sensitive
Ethernet applications. With the CS8900A, system engi-
neers can design a complete Ethernet circuit that
occupies less than 1.5 square inches (10 sq. cm) of
board space.
■ 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
■ Boundary Scan and Loopback Test
ORDERING INFORMATION
CS8900A-CQ 0° to 70° C 5V
CS8900A-IQ -40° to 85° C 5V
CS8900A-CQ3 0° to 70° C 3.3V TQFP-100
CS8900A-IQ3 -40° to 85° C 3.3V TQFP-100
CRD8900A-1
TQFP-100
TQFP-100
■ LED Drivers for Link Status and LAN Activity
■ Standby and Suspend Sleep Modes
Evaluation Kit
20 MHz
XTAL
EEPROM
CS8900A ISA Ethernet Controller
LED
Control
Clock
10BASE-T
RX Filters &
Receiver
EEPROM
Control
RAM
RJ-45 10BASE-T
10BASE-T
TX Filters &
Transmitter
Encoder/
Decoder
&
I
S
A
ISA
Bus
Logic
PLL
AUI
Transmitter
Attachment
Unit
AUI
802.3
MAC
Engine
Memory
Manager
Interface
(AUI)
Collision
Boundary
Scan
Test Logic
Power
Manager
AUI
Receiver
CIRRUS LOGIC PRODUCT DATA SHEET
Copyright Cirrus Logic, Inc. 1999
(All Rights Reserved)
DS271PP3
MAR ‘99
CIRRUS [ CIRRUS LOGIC ]
