CS8900A
Product Data Sheet
FEATURES
s
Single-Chip IEEE 802.3 Ethernet Controller with
Direct ISA-Bus Interface
s
Maximum Current Consumption = 55 mA (5V Supply)
s
3 V Operation
s
Industrial Temperature Range
s
Comprehensive Suite of Software Drivers Available
s
Efficient PacketPage™ Architecture Operates in
I/O and Memory Space, and as DMA Slave
s
Full Duplex Operation
s
On-Chip RAM Buffers Transmit and Receive Frames
s
10BASE-T Port with Analog Filters, Provides:
— Automatic Polarity Detection and Correction
&U\VWDO /$1
™ ISA Ethernet
Controller
DESCRIPTION
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.
In addition to high integration, the CS8900A offers a
broad range of performance features and configuration-
options.
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 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.
ORDERING INFORMATION
CS8900A-CQ 0° to 70° C
CS8900A-IQ
-40° to 85° C
CS8900A-CQ3 0° to 70° C
CS8900A-IQ3 -40° to 85° C
CRD8900A-1
20 MHz
XTAL
s
AUI Port for 10BASE2, 10BASE5 and 10BASE-F
s
Programmable Transmit Features:
— Automatic Re-transmission on Collision
— Automatic Padding and CRC Generation
s
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
s
EEPROM Support for Jumperless Configuration
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Boot PROM Support for Diskless Systems
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Boundary Scan and Loopback Test
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LED Drivers for Link Status and LAN Activity
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Standby and Suspend Sleep Modes
EEPROM
5V
TQFP-100
5V
TQFP-100
3.3V TQFP-100
3.3V TQFP-100
Evaluation Kit
CS8900A ISA Ethernet Controller
LED
Control
EEPROM
Control
RAM
Clock
10BASE-T
RX Filters &
Receiver
10BASE-T
TX Filters &
Transmitter
RJ-45
10BASE-T
I
S
A
ISA
Bus
Logic
Encoder/
Decoder
&
PLL
AUI
Transmitter
AUI
Collision
AUI
Receiver
Memory
Manager
802.3
MAC
Engine
Boundary
Power
Scan
Manager
Test Logic
Attachment
Unit
Interface
(AUI)
CIRRUS LOGIC PRODUCT DATA SHEET
DS271PP3
Copyright
©
Cirrus Logic, Inc. 1999
(All Rights Reserved)
MAR ‘99
CIRRUS [ CIRRUS LOGIC ]
