BGW200EG_1 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 01 — 18 July 2007 17 of 76
NXP Semiconductors
BGW200EG
IEEE 802.11b System-in-Package
The IEEE 802.11b compliant HW MAC supports the following features:
• Data rates up to 11 Mbit/s
• SIFS timer
• Cyclic Redundancy Check (CRC) calculation and checking
• Back-off mechanism support
• Automated transmit timing control
• Automated TBTT/TXOP boundary checking
• Automated NAV timer update
• Automated IBSS mode beacon handling
• Automated TSF update from the beacon packet
• Automated insertion of TSF into the beacon packet
• Automatic wake-up for beacon reception
• Automated header field insertion (e.g. transmit address)
• QoS support:
– 4 EDCF channels
– 2 streams for HCF
• ATIM handler
• SW programmable automated response mechanism (e.g. ACK, RTS, CTS and
QoS Null)
• Programmable unicast, multicast and beacon filtering
• Receive and transmit DMA engines for efficient data transfer
• Configurable TX/RX status interrupts
• Bluetooth coexistence Packet Traffic Arbitration (PTA) support
• Configurable antenna TX/RX and diversity switch control signals
The HW MAC block has the following external interfaces:
• SA2405 2.45 GHz transceiver control interface
• Antenna, TX/RX and diversity switch control signals
• Bluetooth coexistence interface
The HW MAC block has interfaces to the following subblocks:
• Physical layer transmitter (PHYTX); see Section 10.7
• Physical layer receiver (PHYRX); see Section 10.8
• RF interface (RFIF); see Section 10.9
