BCM2055中文资料博通公司数据手册PDF规格书

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/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