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參數(shù)資料
| 型號(hào)： | DM9081 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 10BASE-T Hub Controller |
| 中文描述： | 10Base - T集線器控制器 |
| 文件頁數(shù)： | 2/22頁 |
| 文件大?。?/td> | 188K |
| 代理商： | DM9081 |
DM9081
2
Final
Version: DM9081-DS-F01
April 22, 1997
Table of Contents
General Description.......................................................1
Block Diagram ..............................................................1
Table Of Contents..........................................................2
Features.........................................................................3
Pin Configuration..........................................................3
Pin Description..............................................................4
Functional Description ..................................................6
Repeater function.......................................................6
Signal Regeneration...................................................6
Collision Function......................................................6
Auto Partition/Reconnection ......................................6
Fragment Extension...................................................6
Link Integrity Test .....................................................6
Jabber Lockup Protection ...........................................7
Reset..........................................................................7
Expansion Port...........................................................7
External Logic ...........................................................8
LED Functions...........................................................9
Collision Status..........................................................9
AUI1 Port Status........................................................9
AUI2 Port Status........................................................9
Minimum Mode.........................................................9
TP Port Status............................................................9
Normal Mode...........................................................10
LED Latch ...............................................................10
AUI Ports Status ......................................................11
TP Ports Bit Rate Error Status..................................11
TP Ports Jabber Status..............................................11
TP Ports Partition Status...........................................11
Traffic Status............................................................11
TP Port Link Status ..................................................11
DM9081 Chip External Components........................12
Absolute Maximum Ratings.........................................13
DC Electrical Characteristics.......................................13
AC Characteristics.......................................................14
Timing Waveforms
Expansion Port Input Timing ...................................15
Expansion Port Output Timing.................................15
Expansion Port Collision Timing..............................16
AUI Transmit Timing...............................................16
AUI Receive Timing.................................................17
AUI Collision Timing...............................................17
Transmit Timing......................................................17
Receive Timing ........................................................18
Link Integrity Timing...............................................18
Layout Recommendation
Decoupling...............................................................19
Power Plane..............................................................19
Package Information....................................................21
Ordering Information...................................................22
Company Overview......................................................22
Contact Windows.........................................................22
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