AM79C976 Advanced Micro Devices, AM79C976 Datasheet - Page 14
![no-image](/images/manufacturer_photos/0/0/14/advanced_micro_devices_sml.jpg)
AM79C976
Manufacturer Part Number
AM79C976
Description
PCnet-PRO 10/100 Mbps PCI Ethernet Controller
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C976.pdf
(309 pages)
- Current page: 14 of 309
- Download datasheet (3Mb)
LIST OF TABLES
14
Table 1:
Table 2:
Table 3:
Table 4:
Table 5:
Table 6:
Table 7:
Table 8:
Table 9:
Table 10:
Table 11:
Table 12:
Table 13:
Table 14:
Table 15:
Table 16:
Table 17:
Table 18:
Table 19:
Table 20:
Table 21:
Table 22:
Table 23:
Table 24:
Table 25:
Table 26:
Table 27:
Table 28:
Table 29:
Table 30:
Table 31:
Table 32:
Table 33:
Table 34:
Table 35:
Table 36:
Table 37:
Table 38:
Table 39:
Table 40:
Table 41:
Table 42:
Table 43:
Table 44:
Table 45:
Table 46:
Table 47:
Table 48:
System Clock Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Slave Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PCI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Descriptor Read Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Descriptor Write Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Receive Address Match . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Receive Statistics Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Transmit Statistics Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
VLAN Tag Control Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
VLAN Tag Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Auto-Negotiation Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
MAC Control Pause Frame Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
FC Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
FCCMD Bit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
SRAM_TYPE Field Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
LED Default Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
IEEE 1149.1 Supported Instruction Summary . . . . . . . . . . . . . . . . . . . . . 104
BSR Mode Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Device ID Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Address PROM Space Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
I/O Map In Word I/O Mode (DWIO = 0) . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Legal I/O Accesses in Word I/O Mode (DWIO = 0) . . . . . . . . . . . . . . . . . 109
I/O Map In DWord I/O Mode (DWIO = 1) . . . . . . . . . . . . . . . . . . . . . . . . . 109
Legal I/O Accesses in Double Word I/O Mode (DWIO =1) . . . . . . . . . . . . 109
AP_VALUE0: Auto-Poll Value0 Register . . . . . . . . . . . . . . . . . . . . . . . . . 122
AP_VALUE1: Auto-Poll Value1 Register . . . . . . . . . . . . . . . . . . . . . . . . . 123
AP_VALUE2: Auto-Poll Value2 Register . . . . . . . . . . . . . . . . . . . . . . . . . 123
AP_VALUE3: Auto-Poll Value3 Register . . . . . . . . . . . . . . . . . . . . . . . . . 123
AP_VALUE4: Auto-Poll Value4 Register . . . . . . . . . . . . . . . . . . . . . . . . . 123
AP_VALUE5: Auto-Poll Value5 Register . . . . . . . . . . . . . . . . . . . . . . . . . 123
AUTOPOLL0: Auto-Poll0 Register
AUTOPOLL2: Auto-Poll2 Register
AUTOPOLL3: Auto-Poll3 Register
AUTOPOLL4: Auto-Poll4 Register
Receive Ring Base Address Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Transmit Ring Base Address Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
CHIPID: Chip ID Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
CHPOLLTIME: Chain Polling Interval Register . . . . . . . . . . . . . . . . . . . . 129
CMD0: Command0 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
CMD2: Command2 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
CMD3: Command3 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
CMD7: Command7 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
CTRL0: Control0 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
CTRL1: Control1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
CTRL2: Control2 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
PCI Configuration Space Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
AUTOPOLL1: Auto-Poll1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
AUTOPOLL5: Auto-Poll5 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
P R E L I M I N A R Y
Am79C976
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
7/25/00
Related parts for AM79C976
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AM27S29DC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Advanced Micro Devices [4,096-Bit (512x8) Bipolar PROM]
Manufacturer:
Advanced Micro Devices
Datasheet:
![AM27S29APC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Advanced Micro Devices [4,096-Bit (512x8) Bipolar PROM]
Manufacturer:
Advanced Micro Devices
Datasheet:
![AM29BL802CB-70RZE](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Advanced Micro Devices [8 Megabit (512 K x 16-Bit) CMOS 3.0 Volt-only Burst Mode Flash Memory]
Manufacturer:
Advanced Micro Devices
Datasheet:
![M41000001Y](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
M41000001YAdvanced Micro Devices [32 Megabit (4 M x 8-Bit/2 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory and 4 Mbit (512 K x 8-Bit/256 K x 16-Bit) Static RAM]
Manufacturer:
Advanced Micro Devices
Datasheet:
![AM95C94JC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Advanced Burst Error Processor
Manufacturer:
Advanced Micro Devices
![AM7992BPC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Serial interface adapter (SIA)
Manufacturer:
Advanced Micro Devices
Datasheet:
![AM9519ADC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Universal interrupt controller
Manufacturer:
Advanced Micro Devices
Datasheet:
![AM27C256-150DC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
256 kilobit CMOS EPROM
Manufacturer:
Advanced Micro Devices
Datasheet:
![AM9128-10PC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
2048 x 8 static RAM, 100ns
Manufacturer:
Advanced Micro Devices
Datasheet:
![P8284A](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Manufacturer:
Advanced Micro Devices
Datasheet:
![DM81LS98N](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Three-State Octal Buffers
Manufacturer:
Advanced Micro Devices
Datasheet:
![AM2966PC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AM2966PCOctal Dynamic Memory Drivers with Three-State Outputs
Manufacturer:
Advanced Micro Devices
Datasheet:
![DM81LS97N](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Three-State Octal Buffers
Manufacturer:
Advanced Micro Devices
Datasheet:
![DM81LS96N](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Three-State Octal Buffers
Manufacturer:
Advanced Micro Devices
Datasheet:
![PAL16L8-7PC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
TTL programmable array logic, 7ns
Manufacturer:
Advanced Micro Devices
Datasheet: