R ™ AIC -7899 Dual-Channel PCI-to-Ultra160/m SCSI Single-Chip Host Adapter Overview Providing outstanding performance and flexibility generations. The higher 160 MByte/sec for servers and high-end workstations, the dual- data rate achieved on existing LVD cable channel AIC-7899 single-chip host adapter meets configurations mandated this improved tomorrow’s requirements today. It delivers data integrity feature. Ultra160/m SCSI data rates up to 160 MByte/sec on each channel to address emerging bandwidth- SCSI Bus Configuration Testing hungry applications, such as real-time video, data The AIC-7899 fully supports Ultra160/m and mining, Internet/Intranet, and scientific modeling Ultra3 SCSI Domain Validation. Domain and simulation. The AIC-7899 chip features a Validation provides SCSI bus configuration 66 MHz, 64-bit PCI interface for next-generation testing to help insure Ultra160/m devices high-end servers and workstations. operate at optimum speed. Product Benefits Migration to new Ultra160/m SCSI technology Long Cables Up to 320 MByte/sec data transfer is easy with the AIC-7899. It accommodates Using Low Voltage Differential (LVD), each rates on dual Ultra160/m SCSI Ultra160/m, Ultra3, Ultra2, and earlier SCSI AIC-7899 channel supports up to a maximum generations. The chip is available in a 388-pin of 15 devices on a 12 meter cable. In a point- channels Ball Grid Array (BGA) package. to-point arrangement, cabling can extend to 25 meters. The AIC-7899 operates on any existing 66 MHz, 64-bit PCI interface that Key Benefits Ultra2 SCSI supported cable configuration. The supports zero wait-state memory; Increased SCSI Performance cable-length distances provide greater system also operates on 33 MHz, 32-bit With the AIC-7899 dual-channel host adapter, configuration flexibility, especially for clustering PCI busses performance takes a giant leap forward. and RAID applications. The AIC-7899 can Ultra160/m technology doubles Ultra2 SCSI also support High Voltage Differential (HVD) Truly independent Ultra160/m data transfer rates—up to 160 MByte/sec. With busses with external HVD transceivers. SCSI channels can be split two channels, the AIC-7899 delivers a total of into separate SCSI and RAID 320 MByte/sec bandwidth. Backward Compatibility configurations The AIC-7899 incorporates an advanced multi- In addition, the AIC-7899 single-chip host mode I/O cell that supports Ultra2, Ultra3, PC99 compliant adapter features a PCI bus interface that supports and Ultra160/m SCSI LVD devices, as well as zero wait-state memory from 66 MHz, 64-bit to single-ended devices. With Ultra160/m devices, Each channel supports up to 33 MHz, 32-bit. The 66 MHz, 64-bit interface the SCSI bus performs at full Ultra160/m 15 devices on a standard Ultra2 quadruples the bandwidth provided by a 33 MHz, speeds and full LVD cable lengths. With two SCSI LVD cable configuration up 32-bit PCI interface, from 133 MByte/sec to Ultra160/m channels, one can be used for 533 MByte/sec, enabling maximum system Ultra160/m LVD peripherals and the other for to 12 meters throughput for each Ultra160/m channel. previous-generation SCSI devices. Fully compatible with the The separate SCSI channels of the AIC-7899 In mixed environments of LVD and single- AIC-3860 LVD-to-single-ended utilize two unique PCI device IDs. In workstation ended devices, the AIC-7899 host adapter transceiver and server RAID applications, the two Ultra160/m chip can couple with an Adaptec AIC-3860 SCSI channels can be independent RAID and transceiver chip to bridge the signaling SCSI configurations, controlled by two different discontinuity. By dividing the SCSI bus device drivers for maximum flexibility and effective into independent single-ended and LVD use of system storage. segments, the AIC-3860 supports legacy devices without limiting performance and Improved Data Integrity LVD segment cable lengths. The AIC-7899 fully supports Ultra160/m Cyclic Redundancy Check (CRC). The CRC detects data Ultra160/m SCSI uses the same connectors integrity errors that would not be detected by and cables as Ultra2, so upgrading system simple parity checking used by previous SCSI performance is easy and cost-effective. Adaptec, Inc. 691 South Milpitas Boulevard AIC-7899 Milpitas, California 95035 Tel: (408) 945-8600 Performance Fax: (408) 262-2533 • 66 MHz, 64-bit PCI interface supports zero wait-state memory—also operates on PCI busses down to 33 MHz, 32-bit Adaptec Europe - Belgium Tel: (32) 2-352-34-11 • Up to 160 MByte/sec on each Ultra160/m SCSI channel for a total bandwidth of Fax: (32) 2-352-34-00 320 MByte/sec ® • Two 20-MIPS PhaseEngine RISC processors for fast SCSI command processing Adaptec Japan - Tokyo Tel: (81) 3-5365-6700 • Two 1024-byte data FIFO buffers for efficient PCI bus utilization Fax: (81) 3-5365-6950 • Cache line-streaming for improved PCI bus utilization Adaptec Singapore • Dual Address Cycle (DAC) provides greater system memory addressibility Tel: (65) 245-7477 • Target mode to support clustering, bridge and RAID applications Fax: (65) 245-7487 • Tagged command queuing enables changing SCSI command execution order to Literature: improve performance 1-800-934-2766 (USA and Canada) or (408) 957-7274 Additional Features Pre-Sales Support: • Independent Ultra160/m SCSI channels using two unique PCI devices IDs can be 1-800-442-7274 (USA and Canada) configured for separate SCSI and RAID configurations or (408) 957-7274 • Advanced multimode Ultra160/m SCSI I/O cell for supporting Low Voltage World Wide Web: Differential (LVD) or single-ended devices http://www.adaptec.com • Full Ultra160/m and Ultra3 SCSI Domain Validation and CRC support Internet ftp server: ftp.adaptec.com • JTAG boundary scan to support system-level interconnect testing Adaptec USA Bulletin Board • 3.3V/5V PCI interface for providing flexibility for designing high-performance, Service (BBS): (408) 945-7727 (up to 28,800 baud, using 8 bits, low-power systems 1 stop bit, no parity) • Enhanced Logical Unit Number (LUN) supports up to a maximum of 32 LUNs ® Interactive Fax: (303) 684-3400 • Microsoft PC99 compliant • Microsoft Advanced Cluster Server compatible • PCI Hot-Plug compatible • Fully compatible with the AIC-3860 for single-ended device connection R Software Support R ® ® • Microsoft Windows NT , Windows 95 and 98, Novell NetWare, SCO Openserver, SCO UnixWare, IBM OS/2, Sun Solaris, and Linux SCSI Device Support • Connection for up to 30 SCSI devices in two Ultra160/m SCSI channels Copyright 1999 Adaptec, Inc. All rights reserved. Adaptec, • Support for a combination of 16-bit Ultra160/m, Ultra3, Ultra2, Ultra, and the Adaptec logo, the Adaptec tagline, PhaseEngine, standard SCSI devices including disk drives, disk arrays, tape drives, CD-ROM and AIC are trademarks of Adaptec, Inc., which may be and CD-R drives, jukeboxes, removable drives, scanners, and printers registered in some jurisdictions. Microsoft, Windows, Windows NT, Windows 95, and Windows 98 are trade- • Slower Ultra SCSI legacy devices can be connected to Adaptec’s AIC-3860 marks of Microsoft Corporation, used under license. All LVD-to-single-ended SCSI transceivers for optimal SCSI bus performance other trademarks used are owned by their respective owners. Information supplied by Adaptec, Inc., is believed to be accurate and reliable at the time of printing, but Adaptec, Inc., assumes no responsibility for any errors that may appear in this document. Adaptec, Inc., reserves the right, without notice, to make changes in product design or specification. Information is subject to change without notice. P/N 985679-011 3/99 Printed in U.S.A.