CS8900A datasheet(7/128 Pages) CIRRUS

7 / 128 page

DS271PP3

CS8900A

Crystal LAN™ ISA Ethernet Controller

CIRRUS LOGIC PRODUCT DATA SHEET

5.7.2.2 Selecting which Events Cause Interrupts......................................................................... 99

5.7.3 Changing the Configuration ....................................................................................................... 99

5.7.4 Enabling CRC Generation and Padding .................................................................................. 100

5.7.5 Individual Packet Transmission ............................................................................................... 100

5.7.6 Transmit in Poll Mode .............................................................................................................. 101

5.7.7 Transmit in Interrupt Mode ...................................................................................................... 101

5.7.8 Completing Transmission ........................................................................................................ 103

5.7.9 Rdy4TxNOW vs. Rdy4Tx ........................................................................................................ 103

5.7.10 Committing Buffer Space to a Transmit Frame ..................................................................... 103

5.7.11 Transmit Frame Length ......................................................................................................... 105

5.8 Full duplex Considerations................................................................................................................ 105

5.9 Auto-Negotiation Considerations ...................................................................................................... 105

6.0 TEST MODES ......................................................................................................................................... 106

6.0.1 Loopback & Collision Diagnostic Tests ................................................................................... 106

6.0.2 Internal Tests ........................................................................................................................... 106

6.0.3 External Tests.......................................................................................................................... 106

6.0.4 Loopback Tests ....................................................................................................................... 106

6.0.5 10BASE-T Loopback and Collision Tests................................................................................ 106

6.0.6 AUI Loopback and Collision Tests........................................................................................... 106

6.1 Boundary Scan.................................................................................................................................. 107

6.1.1 Output Cycle ............................................................................................................................ 107

6.1.2 Input Cycle............................................................................................................................... 107

6.1.3 Continuity Cycle....................................................................................................................... 108

7.0 CHARACTERISTICS/SPECIFICATIONS ............................................................................................... 111

7.1 ABSOLUTE MAXIMUM RATINGS.................................................................................................... 111

7.2 RECOMMENDED OPERATING CONDITIONS ............................................................................... 111

7.3 DC CHARACTERISTICS .................................................................................................................. 111

7.4 SWITCHING CHARACTERISTICS................................................................................................... 113

7.5 10BASE-T WIRING........................................................................................................................... 120

7.6 AUI WIRING ................................................................................................................................... 121

7.7 QUARTZ CRYSTAL REQUIREMENTS............................................................................................ 121

8.0 PHYSICAL DIMENSIONS....................................................................................................................... 122

9.0 GLOSSARY OF TERMS......................................................................................................................... 123

9.1 Acronyms .......................................................................................................................................... 123

9.2 Definitions ......................................................................................................................................... 124

9.3 Acronyms Specific to the CS8900A .................................................................................................. 125

9.4 Terms Specific to the CS8900A ........................................................................................................ 125

9.5 Suffixes Specific to the CS8900A. .................................................................................................... 126

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