CS8900A
Crystal LAN™ ISA Ethernet Controller
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
CIRRUS LOGIC PRODUCT DATA SHEET
DS271PP3
7
CIRRUS [ CIRRUS LOGIC ]
