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| BCM4780P (R) NASOCTM NETWORK ATTACHED STORAGE PROCESSOR FEATURES * Advanced 400 DMIPS / 300 MHz MIPS32TM CPU core * 16 KB I-cache, 16 KB D-cache, and 1 KB prefetch cache * MMU/TLB Support for Linux(R) * 10/100 Ethernet MAC with MII for LAN connectivity * PCI 2.3 host interface (32 bit / 33 MHz) SUMMARY OF BENEFITS * Turnkey software and hardware provide the following benefits * * * * * * * * * * * * * * Plug-and-Play Auto-discovery User-transparent TwinCopyTM RAID1 technology Stressless Hot-Swap, Online-Build, Online-Merge, OnlineRepair Real-time encryption ensures data confidentiality Simultaneous NFS/CIFS support Simultaneous Wired & Wireless LAN accesses Advanced QoS supports media playback/record High-level RAID0,1,10 independent of drive types Powerful volume management features Simple yet advanced File Access Control (ACL) Advanced journaling file system S.M.A.R.T. monitoring and report 12 Mbps USB 1.1 compliant host/device interface enables expansion for Print Server, USB drives for seamless upgrade of hard disks & backup, UPS * 12 Mbps USB 1.1 host and device interface * GPIO interface * SDRAM controller * 32 bit / 133 MHz SDRAM controller * SDR and DDR support * 8 MB to 512 MB capacity * Encryption/Decryption block * 3DES-CBC, DES-CBC * AES-CBC, AES-CTR with 128, 192, and 256 bit keys * MD5, SHA1, HMAC-MD5, HMAC-SHA1 * SSL-MAC-MD5, SSL-MAC-SHA1, TLS-MAC-MD5, TLSMAC-SHA1 16-bit external interface bus * * Dual 16550 compatible UART * 0.13 low-power 1/2/3.3V design BCM4780P System Diagram BCM4780 SATA or IDE SATA or IDE SATA or IDE SATA or IDE 8 MB-512 MB 133-M Hz SDR/DDR SDRAM 802.11a/b/g Wireless LAN GPIO PCI 2.3 Host USB 1.1 Host / Device 2 MB-32 MB Flash Memory SDRAM I/F 300-MHz MIPS32 Core with MMU External Interface Bus UART ODD 10/100 MAC Encryption/ Decryption AC101L Magnetics 10/100 LAN AC101L RJ-45 OVERVIEW BCM4780P Block Diagram BCM4780 EJTAG USB Device Controller USB Connectors Two-Port USB Host Controller PCI Interface 48 MHz Crystal Timer Interrupt Ctrl Mult/Acc MMU MIPS32 Core Bus I/F I-Cache (16 KB) Cache Controller + 1 KB Prefetch Cache PLL SDRAM Interface D-Cache (16 KB) Internal Bus External Interface Bus UART Encryption/ Decryption Clock 10/100 MAC GPIO Port Flash IDE LAN The Broadcom NASoC BCM4780P processor is a high-performance, low-power chip designed for low and medium NAS products. The BCM4780P has an advanced custom 400 DMIPS / 300 MHz MIPS32TM core with a 2-way set associative 16 KB instruction cache, a 16 KB data cache, a 1 KB prefetch cache, and a 10/100 Ethernet MAC. An integrated MMU with a 32-entry TLB allows support of multithreaded operating systems such as standard distribution Linux. The BCM4780P provides simultaneous PCI 2.3 host interface, expansion host interface, and USB 1.1 host/device interface operation for adding application-specific peripherals - including Broadcom's BCM4309 IEEE 802.11a/g dual-band processor, the BCM4306 IEEE 802.11g processor, the BCM4301 IEEE 802.11b processor, and an external ATA/SATA controller. The PCI 2.3 host interface allows enumeration of three external PCI peripherals (or more, with an external arbiter) for platform expansion. The external interface bus allows expansion of up to four devices without external address decoding. The BCM4780P is capable of hosting two USB 1.1 compliant devices (a two port hub is integrated), allowing platform expansion by end users, and it can implement USB print server functionality. In addition, the USB interface can be configured as a USB device (instead of as a host) to support applications where the BCM4780P-based system is added to legacy systems. Broadcom(R), the pulse logo, and Connecting everything(R) are trademarks of Broadcom Corporation and/ or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the property of their respective owners. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2003 by BROADCOM CORPORATION. All rights reserved. 4780P-PB00-R 11/3/03 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com SDRAM |
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