QSpan II™ PowerQUICC-to-PCI Bridge Product Brief ® Device Overview Features The IDT QSpan II is a PCI-to-Host processor bridge for the Freescale PowerQUICC (MPC860/850/821), the QUICC (MC68360), and the MC68040. It has a growing customer list of tier-one communications vendors. The QSpan II operates at speeds up to 50 MHz on the Host processor bus, with programmable parity and burst/prefetch capability. Its 32-bit/ 33 MHz PCI 2.2 support is ideal for embedded processor applications. Another key feature of the QSpan II is its integrated PCI bus arbiter. This arbiter supports up to seven external bus masters and uses a fairness algorithm to prevent deadlocks on the bus. Block Diagram Hot Swap Friendly Four FIFO Messaging Hot Swap Controller I2 0 QBus Slave Channel Posted Writes, Prefetched Reads, Delayed Single Reads/Writes PCI/QBus Interrupts, Mailbox Registers 32-bit Address and Data 50 MHz Processor Bus Interrupt Channel QBus (Processor) Interface FIFO-based, Direct/Linked List Mode PCI Interface 32-bit Address and Data 33 MHz PCI Bus IDMA/DMA Channel Posted Writes, Prefetched Reads, Delayed Single Reads/Writes Typical Applications JTAG 8091862_BK001_03 Up to 7 External Bus Masters Benefits • Industry-proven PCI System Interconnect device • Reduces customer’s design hours and time-to-market using QSpan II’s design support tools PCI Target Channel PCI Bus Arbiter • Integrated PCI Bus Arbiter – Supports up to seven external bus masters – Fairness algorithm for preventing deadlocks • CompactPCI Hot Swap Friendly • High-performance DMA controller with support for Direct and Linked List modes • Mailbox registers for passing parameters between host and embedded environments • PCI version 2.2 Enhancements – Vital Product Data: offers an improved method of communicating board-specific information to the system – PCI Power Management interface: enables operating systems to control the power supplied to QSpan II related hardware (for example, an add-in card) • High-Performance PCI Bus Interface – Zero-wait state bursts, prefetch reads and writes on PCI – Serial EEPROM interface for Plug and Play compatibility on PCI – Universal PCI signaling (3.3 and 5V compliant) • High-Performance Processor Interface – MPC860 interface supports prefetched reads and burst writes – Operates up to 50 MHz IEEE1149.1 Boundary Scan The QSpan II also has a DMA controller for reliable, high-performance data transfer between the PCI bus and the Host processor bus. Two modes of DMA operation (Direct and Linked List) offer designers a greater level of flexibility. The QSpan II further distinguishes itself by providing embedded systems designers access to CompactPCI Hot Swap, PCI v2.2 Vital Product Data (VPD), Power Management, and four, 32-bit mailbox registers. QSpan II’s typical applications include the following: • LAN/WAN Infrastructure – Network interface cards – Routers (including SOHO applications) – Servers • Remote and Local Access Equipment – xDSL concentrators – VoIP gateways • CPE Equipment – Process control equipment – Data acquisition systems The device is offered in two packages: a 17 x 17 mm package with a 1.0 mm ball pitch, and a 27 x 27 mm package with a 1.27 mm ball pitch. IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. 1 of 2 2009 Integrated Device Technology, Inc. October 26, 2009 QSpan II Product Brief • Other – PMC cards – Set-top boxes – Any 68K-based or PowerPC-based system migrating to the PCI bus The following diagram shows a QSpan II router application. In this example, one QSpan II is used as a system host bridge and the other is used on a peripheral adapter card. Router Application I/O Card I/O Card Controller Card I/O Card Ethernet, TI/E1, etc. Memory Memory MPC860 MPC860 Processor Bus Processor Bus QSpan II QSpan II PCI Bus 8091862_TA001_02 August 16, 2004August 16, 200 NOT AN OFFER FOR SALE The information presented herein is subject to a Non-Disclosure Agreement and is for planning purposes only. Nothing contained in this presentation, whether verbal or written, is intended as, or shall have the effect of, a sale or an offer for sale that creates a contractual power of acceptance. ® CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 2 of 2 for Tech Support: email: [email protected] phone: 408-360-1538 document: 8091862_MD900_09 October 26, 2009