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AM79C976KCW Datasheet(PDF) 12 Page - Advanced Micro Devices

Part # AM79C976KCW
Description  PCnet-PRO??10/100 Mbps PCI Ethernet Controller
PDF  309 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C976KCW Datasheet(HTML) 12 Page - Advanced Micro Devices

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Am79C976
7/25/00
P R E L I M INARY
LIST OF FIGURES
Figure 1:
Slave Configuration Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 2:
Slave Configuration Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 3:
Slave Read Using I/O Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 4:
Slave Write Using Memory Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 5:
Disconnect Of Slave Cycle When Busy . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 6:
Disconnect Of Slave Burst Transfer - No Host Wait States . . . . . . . . . . . . 38
Figure 7:
Disconnect Of Slave Burst Transfer - Host Inserts Wait States . . . . . . . . . 39
Figure 8:
Address Parity Error Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 9:
Slave Cycle Data Parity Error Response . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 10:
Bus Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 11:
Non-Burst Read Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 12:
Burst Read Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 13:
Non-Burst Write Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 14:
Burst Write Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 15:
Disconnect With Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 16:
Disconnect Without Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 17:
Target Abort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 18:
Preemption During Non-Burst Transaction . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 19:
Preemption During Burst Transaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 20:
Master Abor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 21:
Master Cycle Data Parity Error Response . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 22:
Descriptor Ring Read In Non-Burst Mode . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 23:
Descriptor Ring Read In Burst Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 24:
Descriptor Ring Write In Non-Burst Mode . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 25:
Descriptor Ring Write In Burst Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 26:
FIFO Burst Write At Start Of Unaligned Buffer . . . . . . . . . . . . . . . . . . . . . 58
Figure 27:
FIFO Burst Write At End Of Unaligned Buffer . . . . . . . . . . . . . . . . . . . . . . 59
Figure 28:
16-Bit Software Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 29:
32-Bit Software Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 30:
ISO 8802-3 (IEEE/ANSI 802.3) Data Frame . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 31:
IEEE 802.3 Frame and Length Field Transmission Order . . . . . . . . . . . . . 73
Figure 32:
VLAN-Tagged Frame Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 33:
Media Independent Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 34:
Frame Format at the MII Interface Connection . . . . . . . . . . . . . . . . . . . . . 83
Figure 35:
MII Receive Frame Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 36:
External SSRAM and Flash Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 37:
Expansion ROM Bus Read Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 38:
Flash Read from Expansion Bus Data Port . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 39:
Flash Write Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 40:
EEPROM Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Figure 41:
EEPROM Entry Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Figure 42:
CRC Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Figure 43:
LED Control Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Figure 44:
OnNow Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Figure 45:
Pattern Match RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Figure 46:
PCI Expansion ROM Base Address Register . . . . . . . . . . . . . . . . . . . . . 117
Figure 47:
Address Match Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Figure 48:
Normal and Tri-State Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271



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