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CS8900A-IQ3 датащи(PDF) 2 Page - Cirrus Logic |
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CS8900A-IQ3 датащи(HTML) 2 Page - Cirrus Logic |
2 / 128 page 2 DS271PP3 CS8900A Crystal LAN™ ISA Ethernet Controller CIRRUS LOGIC PRODUCT DATA SHEET TABLE OF CONTENTS 1.0 INTRODUCTION ......................................................................................................................................... 8 1.1 General Description............................................................................................................................... 8 1.1.1 Direct ISA-Bus Interface .............................................................................................................. 8 1.1.2 Integrated Memory....................................................................................................................... 8 1.1.3 802.3 Ethernet MAC Engine ........................................................................................................ 8 1.1.4 EEPROM Interface ...................................................................................................................... 8 1.1.5 Complete Analog Front End ........................................................................................................ 8 1.2 System Applications .............................................................................................................................. 8 1.2.1 Motherboard LANs....................................................................................................................... 8 1.2.2 Ethernet Adapter Cards ............................................................................................................... 9 1.3 Key Features and Benefits .................................................................................................................. 10 1.3.1 Very Low Cost ........................................................................................................................... 10 1.3.2 High Performance ...................................................................................................................... 10 1.3.3 Low Power and Low Noise ........................................................................................................ 10 1.3.4 Complete Support ...................................................................................................................... 10 2.0 PIN DESCRIPTION ................................................................................................................................ 12 3.0 FUNCTIONAL DESCRIPTION .................................................................................................................. 17 3.1 Overview ............................................................................................................................................. 17 3.1.1 Configuration ............................................................................................................................. 17 3.1.2 Packet Transmission.................................................................................................................. 17 3.1.3 Packet Reception....................................................................................................................... 17 3.2 ISA Bus Interface ................................................................................................................................ 18 3.2.1 Memory Mode Operation ........................................................................................................... 18 3.2.2 I/O Mode Operation ................................................................................................................... 18 3.2.3 Interrupt Request Signals .......................................................................................................... 18 3.2.4 DMA Signals .............................................................................................................................. 18 3.3 Reset and Initialization ........................................................................................................................ 19 3.3.1 Reset ......................................................................................................................................... 19 3.3.1.1 External Reset, or ISA Reset ...........................................................................................19 3.3.1.2 Power-Up Reset ............................................................................................................... 19 3.3.1.3 Power-Down Reset .......................................................................................................... 19 3.3.1.4 EEPROM Reset ............................................................................................................... 19 3.3.1.5 Software Initiated Reset ................................................................................................... 19 3.3.1.6 Hardware (HW) Standby or Suspend ............................................................................... 19 3.3.1.7 Sof tware (SW) Suspend .................................................................................................. 19 3.3.2 Allowing Time for Reset Operation ............................................................................................ 19 3.3.3 Bus Reset Considerations ......................................................................................................... 19 3.3.4 Initialization ................................................................................................................................ 20 3.4 Configurations with EEPROM ............................................................................................................. 21 3.4.1 EEPROM Interface .................................................................................................................... 21 3.4.2 EEPROM Memory Organization ................................................................................................ 21 3.4.3 Reset Configuration Block ......................................................................................................... 21 3.4.3.1 Reset Configuration Block Structure ................................................................................ 21 3.4.3.2 Reset Configuration Block Header ................................................................................... 21 3.4.3.3 Determining the EEPROM Type ...................................................................................... 21 3.4.3.4 Checking EEPROM for presence of Reset Configuration Block ...................................... 21 3.4.3.5 Determining Number of Bytes in the Reset Configuration Block ...................................... 22 3.4.4 Groups of Configuration Data .................................................................................................... 22 3.4.4.1 Group Header................................................................................................................... 23 3.4.5 Reset Configuration Block Checksum .......................................................................................23 3.4.6 EEPROM Example .................................................................................................................... 23 3.4.7 EEPROM Read-out ................................................................................................................... 23 |
Аналогичный номер детали - CS8900A-IQ3 |
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Аналогичное описание - CS8900A-IQ3 |
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