器件名称:
AM79C974
功能描述:
PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems
文件大小:
838.58KB 共153页
简 介:
PRELIMINARY Am79C974 PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems DISTINCTIVE CHARACTERISTICS PCI Features s Direct glueless interface to 33 MHz, 32-bit PCI local bus s 132 Mbyte/s burst DMA transfer rate s Compliant to PCI local bus Specification Revision 2.0 Advanced Micro Devices SCSI Features s Compliant to ANSI standards X3.131 – 1986 (SCSI-1) and X3.131 – 199X (SCSI-2) s Fast 8-bit SCSI-2 10 Mbyte/s synchronous or 7 Mbyte/s asynchronous data transfer rate s SCSI specific Bus Mastering DMA engine (32-bit address/data) s 96-byte DMA FIFO for low bus latency s On-chip state machine to control the SCSI sequences in hardware s Integrated industry standard Fast SCSI-2 core s Single-Ended 48 mA outputs to drive the SCSI bus directly s Support for Scatter-Gather DMA data transfers s Hooks in silicon and software to enable disk drive spin down for power savings Ethernet Features s Supports ISO 8802-3 (IEEE/ANSI 802.3) and Ethernet Standards s High-performance Bus Master architecture with integrated DMA Buffer Management Unit for low CPU and bus utilization s Individual 136-byte transmit and 128-byte receive FIFOs provide frame buffering for increased system latency s Microwire EEPROM interface supports jumperless design TM General Features s Software compatible with AMD’s Am79C960 PCnet-ISA, Am79C961 PCnet-ISA+, Am79C965 PCnet-32, Am79C970 PCnet-PCI register and descriptor architecture s Plug-in and software compatible with AMD’s PCSCSI family of SC……
