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