Cirrus Logic CS8900A - Manual

Copyright
 Cirrus Logic, Inc. 2010
(All Rights Reserved)
CS8900A
Product Data Sheet
Crystal LAN™ Ethernet
Controller
FEATURES
 Single-Chip IEEE 802.3 Ethernet Controller with
Direct ISA-Bus Interface
 Maximum Current Consumption = 55 mA (5V
Supply)
 3 V or 5 V Operation
 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
 10BASE-T Port with Analog Filters, Provides:
- Automatic Polarity Detection and Correction
 AUI Port for 10BASE2, 10BASE5 and 10BASE-F
 Programmable Transmit Features:
- Automatic Re-transmission on Collision
- Automatic Padding and CRC Generation
 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
 LED Drivers for Link Status and LAN Activity
 Standby and Suspend Sleep Modes
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 LQFP-100 Lead free
CS8900A-IQZ -40° to 85° C 5V LQFP-100 Lead free
CS8900A-CQ3Z 0° to 70° C 3.3V LQFP-100 Lead free
CS8900A-IQ3Z -40° to 85° C 3.3V LQFP-100 Lead free
CRD8900A-1 Evaluation Kit
EEPROM
RJ-45 10BASE-T
Attachment
Unit
Interface
(AUI)
20 MHz
XTAL
RAM
Bus
Logic
Memory
Manager
802.3
MAC
Engine
EEPROM
Control
Encoder/
Decoder
&
PLL
10BASE-T
RX Filters &
Receiver
10BASE-T
TX Filters &
Transmitter
AUI
Transmitter
AUI
Collision
AUI
Receiver
Clock
Power
Manager
Boundary
Scan
Test Logic
LED
Control
CS8900A ISA Ethernet Controller
Host
Hos
t B
u
s
DS271F5 SEP ‘10