A C 2 0 6 F E A T U R E S
10 Mbps
100 Mbps
MII
R-MII
7-Wire
CPU
AC208
AC208
AC208
AC206
8
8
8
5
AC206 Application with AC208 System Block Diagram
AC206 is a member of the AC208 product family, with
the same architecture and fabrication technology.
Other members in the product family include AC208,
AC207, AC205 and AC205i.
Provides easy product migration.
Provides seamless integration for WAN connections
and system expansion.
Includes lowest overall cost and form factor for 10/100
repeater hub design and SOHO gateway and router
design.
Field-proven, industry-standard 10BASE-T/
100BASE-TX Fast Ethernet transceivers lower overall
system interoperability and reliability risks.
Integrated memory reduces component cost and
manufacturing and testing costs.
Low power consumption and low heat dissipation
allow high design density and low system cost.
EEPROM-configured system parameter enables cost-
sensitive architecture.
Configurable MII or reversed MII or 7-wire interface
allow versatile application with WAN connectivity.
S U M M A R Y O F B E N E F I T S
5-PORT ULTRA LOW POWER 10/100 ETHERNET BRIDGED REPEATER
PRODUCT
PRODUCT
Brief
Brief
A C 2 0 6
The highest level of silicon integration achieved for a
five-port 10/100 bridged repeater
The AC206 integrates:
Five transceivers of 10BASE-T/100BASE-TX
One uplink port
10M repeater
100M repeater
Two-port bridge including:
- 32 KB memory for address table and packet buffer
- Local MAC address filter
- Address table up to 1K entries
MII or reversed MII or 7-wire port
Cascade to 13, 21, and 29 port configuration
Fully compliant auto-negotiation
Very small package 128-pin PQFP
280 sq. mm footprint
Very low power typical < 1.2W
Selectable TX drivers for 1:1 or 1.25:1 transformers to enable
additional power reduction
Cable detect mode typical < .20W
Power down mode typical < .05W
ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL
The Altima AC206 is a highly integrated 0.25u CMOS silicon
solution. It combines all the functions of a 10/100 dual-speed
bridged repeater, including PHY transceivers, an MII or reversed
MII or 7-wire hard-wire configurable interface, two internal
repeaters, two repeater backplane busses for expansion, and a
two-port bridge with 32 KB embedded memory.
The AC206 contains five 10BASE-T/100BASE-TX Fast
Ethernet transceivers, one of which can be configured into a full-
duplex uplink port. The transceivers perform all of the physical
layer interface functions for 10BASE-T Ethernet on Category 3,
4, or 5 unshielded twisted pair (UTP) cable and 100BASE-TX
Fast Ethernet on Category 5 UTP cable.
The MII, reversed MII and 7-wire compatible MAC interface
allows the AC206 to be designed into many different
applications, reducing the number of separate devices necessary
to meet multiple design requirements.
The AC206 represents a marked improvement over the previous
generation of the dual-speed bridged repeater family AC108R.
Because the memory is embedded in the silicon, the AC206
offers the obvious advantage of cost savings in the discrete
memory device. Additionally, a 128-pin PQFP package means
savings in manufacturing and testing.
Because the AC206 has the smallest footprint and the lowest
power consumption, on a per-port basis, of any micro-LAN
solution, when all system costs are considered -- power, heat,
components and real estate -- the AC206 provides the lowest
overall system cost and most reliable design.
The AC206 is a member of the AC208 product family. The
AC208 product family includes the AC208, AC207, AC206,
AC205 and AC205i with the following features and
configurations:
AC208: 128-pin PQFP, eight-port TX with cascadable
backplane
AC207: 128-pin PQFP, eight-port TX with MII or 7-wire
AC206: 128-pin PQFP, five-port TX with MII or reversed MII
or 7-wire, cascadable repeater backplane
AC205: 100-pin PQFP, five-port TX with MII or 7-wire
AC205i: 100-pin PQFP, five-port TX with MII or 7-wire and
single independent TX port for IP phone
A C 2 0 6 O V E R V I E W
100 M RBP
10M RBP
. . .
. . .
MUX
R_100
R_10
Bridge
10M
100M
10M RBP
P
H
Y
7 Wire
MII
MII
RBP
M
U
X
MII/
7-Wire
Rv -MII
32 KB
RAM
MII
P
H
Y
P
H
Y
P
H
Y
P
H
Y
(TX4)
Up Link
(TX3)
(TX2)
(TX1)
(TX0)
100M RBP
To Rv-MII
Rv -MII
2002 by ALTIMA COMMUNICATIONS, INC.
A Broadcom Company. All rights reserved.
AC206-PB03-R-11.01.02
ALTIMA COMMUNICATIONS, INC.
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL
Integrated PHY, Repeater and Bridge
Integrated Packet Buffer Memory
Integrated 1K MAC
Programmable LEDs via EEPROM
Backplane for Cascading
MII or Reversed MII or 7-Wire Interface
AC206 Block Diagram
PDF 
ZIP