INFINEON PMB8789

P R O D U C T
B R I E F
Dual-Band Media Access Controller
(MAC) for WLAN System Solutions
The PMB 8789 WLAN media access controller is
one chip of the wireless system solution from
Infineon Technologies that addresses the need of
the emerging market for wireless LAN and wireless
home-networking products. Using a plurality of
host interfaces, the PMB 8789 supports the MAC
and data buffer management functions and is fully
compliant with the IEEE802.11a/b and 11g WLAN
standards.
The PMB 8789 is designed to form an Infineon
WLAN chipset in combination with the PMB 8680
dual-band RF Transceiver, the PMB 8825 dual-band
Power Amplifier and the PMB 8787 dual-band
Modem IC (PHY).
WirelessLAN
Features
■
■
Full implementation of the 802.11 WMAC protocol
- PCI V2.3 bus mastering device featuring 32-bit
including the following:
transfers at 33 MHz
- IEEE 802.11a and 11g standards, including all
- MiniPCI Specification 1.0
optional data rates
■
Host interface support of the following:
- CardBus 32-bit, 33 MHz transfers
- IEEE 802.11b standard data rates
- USB V1.1
- Supports up to 54 Mbit/s data rate
- PC card interface supports full 16-bit implementation
per PCMCIA release 7
Multiple queue management facilities to support QoS
provisions, including IEEE 802.11e QoS
■
Supports 802.11i security encryption algorithms
Applications
without impacting device throughput performance
■
High data-rate wireless LAN
and latency:
■
PC card wireless LAN adapters
- Advanced Encryption Standard (AES)
■
(Mini) PCI wireless LAN cards
■
CardBus wireless LAN adapters
■
Compact flash wireless LAN cards
■
USB wireless LAN adapters
■
Wireless LAN modules, access points, bridge
■
products, and point-to-multipoint systems
- Up to 128-bit wired equivalent privacy (WEP)
®
- Temporal Key Integrity Protocol (TKIP) per Wi-Fi
Protected Access (WPA) and draft 802.11i standard
P M B
8 7 8 9
Dual-Band Media Access Controller
N e v e r
s t o p
t h i n k i n g .
P R O D U C T
B R I E F
Block Diagram
External Data
Storage
Flash/RAM
External Memory
Interface
PLL
RAM
24 K x 16
(Control)
Data Path
MEM Control
Timers
Device Data B
RAM
48 K x 16
(Data)
Arbiter
PCI
Busmaster/
CardBus
CLK
Control
Dedicated Instruction Set
Computer
(DISC)
Host
Interface
Block
MMI
Ports
MDI
AES
DMA
WEP
AES
Engine
WEP
Memory
PC Card
USB
Protocol
Engine
USB DMA
USB
Memory
Features
■ On-chip 64k x 16 static RAM supports full 802.11 station and client functionality without external memory
■ Flexible modem data interface
■ Flexible modem management interface
■ Flexible external memory expansion:
- Programmable wait states for slow external memo
- Multiple memory organization up to 4 Mbytes
TM
■ Supports Bluetooth coexistence through
a two-wire interface
■
■
■
■
Device is capable of low-power operation
An optional 32.768 kHz crystal can be connected for
ultralow power-down mode
Operation at 3.0 V to 3.6 V single supply
Supports IEEE1149.1 boundary scan standard
Ordering Information
Please contact the local Infineon sales office for
dedicated information on our Wireless LAN products
Type
Sales Code
Package
WLAN 802.11 MAC
PMB 8789
FSBGA-196
How to reach us:
http://www.infineon.com
Published by
Infineon Technologies AG,
St.-Martin-Strasse 53,
81669 München
© Infineon Technologies AG 2003. All Rights Reserved.
Attention please!
The information herein is given to describe certain components
and shall not be considered as warranted characteristics.
Terms of delivery and rights to technical change reserved.
We hereby disclaim any and all warranties, including but not
limited to warranties of non-infringement, regarding circuits,
descriptions and charts stated herein.
Infineon Technologies is an approved CECC manufacturer.
Information
For further information on technology, delivery terms
and conditions and prices please contact your nearest
Infineon Technologies Office in Germany or our
Infineon Technologies Representatives worldwide.
Published by Infineon Technologies AG
Warnings
Due to technical requirements components may contain dangerous substances. For information on the types in question
please contact your nearest Infineon Technologies Office.
Infineon Technologies Components may only be used in lifesupport devices or systems with the express written approval
of Infineon Technologies, if a failure of such components can
reasonably be expected to cause the failure of that life-support
device or system, or to affect the safety or effectiveness of that
device or system. Life-support devices or systems are intended to be implanted in the human body, or to support and/or
maintain and sustain and/or protect human life. If they fail, it is
reasonable to assume that the health of the user or other
persons may be endangered.
Printed in Germany
PS 03031.
NB