AM79C973VCW AMD [Advanced Micro Devices], AM79C973VCW Datasheet - Page 9
![no-image](/images/no-image-200.jpg)
AM79C973VCW
Manufacturer Part Number
AM79C973VCW
Description
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM79C973VCW.pdf
(304 pages)
- Current page: 9 of 304
- Download datasheet (3Mb)
P R E L I M I N A R Y
CSR24: Base Address of Receive Ring Lower . . . . . . . . . . . . . . . . . . . . . . . . 141
CSR25: Base Address of Receive Ring Upper . . . . . . . . . . . . . . . . . . . . . . . . 141
CSR26: Next Receive Descriptor Address Lower . . . . . . . . . . . . . . . . . . . . . . 141
CSR27: Next Receive Descriptor Address Upper . . . . . . . . . . . . . . . . . . . . . . 141
CSR28: Current Receive Descriptor Address Lower . . . . . . . . . . . . . . . . . . . . 141
CSR29: Current Receive Descriptor Address Upper . . . . . . . . . . . . . . . . . . . . 141
CSR30: Base Address of Transmit Ring Lower . . . . . . . . . . . . . . . . . . . . . . . . 141
CSR31: Base Address of Transmit Ring Upper . . . . . . . . . . . . . . . . . . . . . . . . 142
CSR32: Next Transmit Descriptor Address Lower . . . . . . . . . . . . . . . . . . . . . . 142
CSR33: Next Transmit Descriptor Address Upper . . . . . . . . . . . . . . . . . . . . . . 142
CSR34: Current Transmit Descriptor Address Lower . . . . . . . . . . . . . . . . . . . 142
CSR35: Current Transmit Descriptor Address Upper . . . . . . . . . . . . . . . . . . . 142
CSR36: Next Next Receive Descriptor Address Lower . . . . . . . . . . . . . . . . . . 142
CSR37: Next Next Receive Descriptor Address Upper . . . . . . . . . . . . . . . . . . 142
CSR38: Next Next Transmit Descriptor Address Lower. . . . . . . . . . . . . . . . . . 143
CSR39: Next Next Transmit Descriptor Address Uper. . . . . . . . . . . . . . . . . . . 143
CSR40: Current Receive Byte Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
CSR41: Current Receive Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
CSR42: Current Transmit Byte Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
CSR43: Current Transmit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
CSR44: Next Receive Byte Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
CSR45: Next Receive Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
CSR46: Transmit Poll Time Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
CSR47: Transmit Polling Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
CSR48: Receive Poll Time Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
CSR49: Receive Polling Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
CSR58: Software Style. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
CSR60: Previous Transmit Descriptor Address Lower . . . . . . . . . . . . . . . . . . 147
CSR61: Previous Transmit Descriptor Address Upper . . . . . . . . . . . . . . . . . . 148
CSR62: Previous Transmit Byte Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
CSR63: Previous Transmit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
CSR64: Next Transmit Buffer Address Lower . . . . . . . . . . . . . . . . . . . . . . . . . 148
CSR65: Next Transmit Buffer Address Upper . . . . . . . . . . . . . . . . . . . . . . . . . 148
CSR66: Next Transmit Byte Count. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
CSR67: Next Transmit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
CSR72: Receive Ring Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
CSR74: Transmit Ring Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
CSR76: Receive Ring Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
CSR78: Transmit Ring Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
CSR80: DMA Transfer Counter and FIFO Threshold Control . . . . . . . . . . . . . 150
CSR82: Transmit Descriptor Address Pointer Lower . . . . . . . . . . . . . . . . . . . . 152
CSR84: DMA Address Register Lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
CSR85: DMA Address Register Upper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
CSR86: Buffer Byte Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
CSR88: Chip ID Register Lower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
CSR89: Chip ID Register Upper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
CSR92: Ring Length Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
CSR100: Bus Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
CSR112: Missed Frame Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Am79C973/Am79C975
9
Related parts for AM79C973VCW
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AMD-751AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-751ACAMD-751-TM System Controller Revision Guide
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-751](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-751AMD-751-TM System Controller Revision Guide
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-X5-133SFZ](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-X5-133SFZAm5X86? Microprocessor Family
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-8131BLC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Hyper Transport PCI-X Tunnel
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-8111AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
HyperTransport I/O Hub
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-640AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
System Controller
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-K6](/images/no-image3.png)
Part Number:
Description:
AMD-K6 Processor
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet:
![AMD-K6-2E/400AFR](/images/no-image3.png)
Part Number:
Description:
AMD-K6™-2E Embedded Processor
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet:
![AMD-8132BLCT](/images/manufacturer_photos/0/0/44/amd__advanced_micro_devices__tmb.jpg)
Part Number:
Description:
Manufacturer:
AMD (ADVANCED MICRO DEVICES)
Datasheet:
![AMD-K6-IIIE+550ACR](/images/manufacturer_photos/0/0/44/amd__advanced_micro_devices__tmb.jpg)
Part Number:
Description:
Manufacturer:
AMD (ADVANCED MICRO DEVICES)
Datasheet:
![AMD-766AC](/images/no-image3.png)
Part Number:
Description:
Peripheral Bus Controller
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet: