Manual; Introduction To Cs8900 Technical Reference Manual - Cirrus Logic CRYSTAL LAN CS890 Technical Reference Manual

1.0 Introduction to CS8900 Techni-
cal Reference Manual
This Technical Reference Manual provides
the information which will be helpful in
designing a board using the CS8900, pro-
gramming the associated EEPROM, and
installing and running the CS8900 device
drivers. It is expected that the user of this
technical reference manual will have a gen-
eral knowledge of hardware design, Ether-
net, the ISA bus, and networking software.
Recommended sources of background in-
formation are:
a) ISA System Architecture by Shanley
and Anderson, Mindshare Press, 1992,
ISBN 1-881609-05-7
b) Ethernet, Building a Communication
Infrastructure, by Hegering and Lapple,
57
ISA Bus
pins
6
EEPROM:
Stores Configuration
Information &
IEEE Address
EEPROM
RAM
Control
ISA
Bus
Logic
Media Access
Control
Memory
(MAC).
Manager
Ethernet
protocol
processing.
Boot PROM:
Used to boot diskless
workstations.
Figure 1.1 - Hardware Application Summary
CS8900 Technical Reference Manual
Addison-Wesley, 1993, ISBN 0-201-
62405-2
c) Netware Training Guide: Networking
Technologies, by Debra Niedenmiller-
Chaffis, New Riders Publishing, ISBN
1-56205-363-9
As shown in the Figure 1.1, the CS8900
requires a minimum number of external
components. The EEPROM stores configu-
ration information such as interrupt num-
ber, DMA channel, I-O base address, mem-
ory base address, and IEEE Individual Ad-
dress. The EEPROM can be eliminated on
a PC motherboard if that information in
stored in the system CMOS. Note also that
the Boot PROM is only needed for diskless
workstations that boot DOS at system
power up, over the network. Also, the LEDs
are optional.
LED
10BASE-T
Clock
Control
RX Filters &
Receiver
10BASE-T
TX Filters &
Encoder,
Transmitter
Decoder
&
PLL
AUI
Transmitter
AUI
Collision
Boundary
Power
AUI
Scan
Manage Receiver
Test Logic
10BASE-T
Transformer
AUI
Transformer
(Attachment
Unit
Interface)
AN83REV1