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DP8390D 数据表(PDF) 1 Page - National Semiconductor (TI) |
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DP8390D 数据表(HTML) 1 Page - National Semiconductor (TI) |
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1 / 56 page ![]() TLF8582 July 1995 DP8390DNS32490D NIC Network Interface Controller General Description The DP8390DNS32490D Network Interface Controller (NIC) is a microCMOS VLSI device designed to ease inter- facing with CSMACD type local area networks including Ethernet Thin Ethernet (Cheapernet) and StarLAN The NIC implements all Media Access Control (MAC) layer func- tions for transmission and reception of packets in accord- ance with the IEEE 8023 Standard Unique dual DMA chan- nels and an internal FIFO provide a simple yet efficient packet management design To minimize system parts count and cost all bus arbitration and memory support logic are integrated into the NIC The NIC is the heart of a three chip set that implements the complete IEEE 8023 protocol and node electronics as shown below The others include the DP8391 Serial Net- work Interface (SNI) and the DP8392 Coaxial Transceiver Interface (CTI) Features Y Compatible with IEEE 8023Ethernet IIThin Ethernet StarLAN Y Interfaces with 8- 16- and 32-bit microprocessor systems Y Implements simple versatile buffer management Y Requires single 5V supply Y Utilizes low power microCMOS process Y Includes Two 16-bit DMA channels 16-byte internal FIFO with programmable threshold Network statistics storage Y Supports physical multicast and broadcast address filtering Y Provides 3 levels of loopback Y Utilizes independent system and network clocks Table of Contents 10 SYSTEM DIAGRAM 20 BLOCK DIAGRAM 30 FUNCTIONAL DESCRIPTION 40 TRANSMITRECEIVE PACKET ENCAPSULATION DECAPSULATION 50 PIN DESCRIPTIONS 60 DIRECT MEMORY ACCESS CONTROL (DMA) 70 PACKET RECEPTION 80 PACKET TRANSMISSION 90 REMOTE DMA 100 INTERNAL REGISTERS 110 INITIALIZATION PROCEDURES 120 LOOPBACK DIAGNOSTICS 130 BUS ARBITRATION AND TIMING 140 PRELIMINARY ELECTRICAL CHARACTERISTICS 150 SWITCHING CHARACTERISTICS 160 PHYSICAL DIMENSIONS 10 System Diagram IEEE 8023 Compatible EthernetThin Ethernet Local Area Network Chip Set TLF8582 – 1 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD-B30M105Printed in U S A |
类似零件编号 - DP8390D |
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类似说明 - DP8390D |
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