BCM4705

Features:

• 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/3337 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




Description

The Broadcom BCM4705 processor integrates a powerful 300 MHz/500 DMIPS (estimated) MIPS32 core with 4-way set associative 32 KB instruction cache, a 32 KB 2-way set associative data cache, and a 4 KB prefetch cache. An enhanced 10/100/1000 Gigabit Ethernet MAC controller with TCP segmentation offload hardware acceleration engine substantially enhances the BCM4705 throughput.

The BCM4705 integrates two USB2.0 EHCI host ports and one USB2.0 device port. The USB2.0 device port allows connectivity to PC or consumer electronics (CE) devices equipped with USB host ports. The BCM4705 integrates two USB2.0 EHCI host ports and one USB2.0 device port. The USB2.0 device port allows connectivity to PC or consumer electronics (CE) devices equipped with USB host ports.