BriefBCM4705®Intensi-fi™ Gigabit Ethernet Draft-802.11n ProcessorBCM4705 System Diagram• Advanced 500 DMIPS/300-MHz MIPS32® core• 4-way set associative 32-KB I-Cache• 2-way set associative 32-KB D-Cache• 4-KB Read-Ahead Cache• MMU/TLB support for Linux®• Advanced Gigabit Ethernet MAC• Hardware TCP segmentation and Checksum offload• GMII, RGMII, and MII PHY connectivity• Two USB2.0 High-speed host ports• One USB2.0 High-speed device port• DDR SDRAM controller• 16/32-bit DDR266 and 133-MHz SDRAM support• 8 MB to 512 MB capacity• Support for 8/16/32-bit wide memory devices• PCI 2.3 Host interface (32 bit/33–37 MHz)• Supports four PCI bus masters• Optional 5V-tolerant operation (PCI 2.2 support)• Advanced GPIO interface• All GPI supports interrupt triggering capability• Dual RS232 UART• 2.4W Low-power design• Turnkey hardware and software platform• Extremely rapid development of draft 802.11n Wi-Fi® AccessPoint/Routers.• Full Linux router stack and software package• Flexible single-band, dual-band, and simultaneous dual-bandplatform support• MIMO configurations supported• 2x2, 2.4 GHz• 2x2, 2.4/5.0 GHz• 3x3, 2.4 GHz• 3x3, 2.4/5.0 GHz• Maximum performance and high throughput• Gigabit Ethernet LAN speeds• Over 190 Mbps TCP/IP Gigabit Ethernet to Wi-Fi bridging insingle-band configuration• Over 250 Mbps TCP/IP Gigabit Ethernet to Wi-Fi bridging insimultaneous dual-band configuration• Flexible architecture for low cost and alternative designs• Allows connection to external 10/100 switches for ultra lowcost applications• Platform expansion through USB2.0• Platform expansion through PCI/Cardbus• Networked Attached Storage (NAS)• Easily build NAS routers with included NAS software moduleFE A T UR E SSU MM AR Y O F B E N E FI TS
