HP Workstation x4000 hp workstation x4000 - Technical Reference manual - Windo - Page 32
SCSI Controller Chip (LSI SYM43C1010R
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System Board System Chipset SCSI Controller Chip (LSI SYM43C1010R) The SCSI chip is a 64 bit/66 MHz PCI DMA bus master device. It includes 2 Ultra160 SCSI controllers, each with it's own independent channel. One channel is connected via ribbon cable to up to two internal SCSI devices. The other channel is routed to a back-panel connector to support external devices SCSI features: • Double Transition (DT) clocking. DT Clocking permits data transfer up to 160 MB/s on each channel, for a total of 320 MB/s • Cyclic Redundancy Check (CRC). CRC improves the integrity of the SCSI data transmission through enhanced detection of communication errors. This is augmented with Asynchronous Information Protection to provide complete end-to-end protection of the SCSI I/O. • Domain Validation. SureLink Domain Validation automatically tests and adjusts the SCSI transfer rate to ensure data integrity at the fastest speed. • LVD and Single-ended (SE) transfers. If an SE device is connected, the channel it is connected to operates as an SE bus. • PCI 2.2 compliant 32 Chapter 2
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