BCM4780p ? nasoc? network attached storage processor BCM4780p system diagram ? advanced 400 dmips / 300 mhz mips32? cpu core 16 kb i-cache, 16 kb d-cache, and 1 kb prefetch cache mmu/tlb support for linux ? 10/100 ethernet mac with mii for lan connectivity pci 2.3 host interface (32 bit / 33 mhz) 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, tls- mac-sha1 16-bit external interface bus dual 16550 compatible uart 0.13 low-power 1/2/3.3v design turnkey software and hardware provide the following benefits plug-and-play auto-discovery user-transparent twincopy tm raid1 technology stressless hot-swap, online-build, online-merge, online- repair 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 features summary of benefits BCM4780p pci 2.3 host external interface bus 300-mhz mips32 core with mmu encryption/ decryption sdram i/f usb 1.1 host / device 2 mb?32 mb flash memory odd uart 10/100 mac gpio 8 mb? 512 mb 133-m hz sdr/ddr sdram 802.11a/b/g wireless lan 10/100 lan rj-45 ac101l magnetics ac101l sata or ide sata or ide sata or ide sata or ide
overview ? phone: 949-450-8700 fax: 949-450-8710 e-mail: info@broadcom.com web: www.broadcom.com broadcom corporation 16215 alton parkway, p.o. box 57013 irvine, california 92619-7013 ? 2003 by broadcom corporation. all rights reserved. 4780p-pb01-r 04/12/04 broadcom ? , the pulse logo, and connecting everything ? 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. the broadcom nasoc BCM4780p processor is a high-performance, low-power chip designed for entry-level nas products. the BCM4780p has an advanced custom 400 dmips / 300 mhz mips32? 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 multi- threaded 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 has usb print server functionality integrated. 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. BCM4780p block diagram usb device controller two-port external interface bus 10/100 mac internal bus gpio port flash sdram sdram interface pll 48 mhz crystal i-cache (16 kb) d-cache (16 kb) mmu timer interrupt ctrl bus i/f ejtag mult/acc mips32 core pci interface usb device controller usb host controller 10/100 mac internal bus gpio port uart sdram sdram interface pll 48 mhz crystal cache controller + 1 kb prefetch cache mmu timer bus i/f ejtag mult/acc mips32 core ide lan bcm47 8 0p encryption/ decryption block usb connectors
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