AM79C976 Advanced Micro Devices, AM79C976 Datasheet - Page 13
AM79C976
Manufacturer Part Number
AM79C976
Description
PCnet-PRO 10/100 Mbps PCI Ethernet Controller
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C976.pdf
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Figure A-1: LAPP Timeline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Figure A-2: LAPP 3 Buffer Grouping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Figure A-3: LAPP Timeline for Two-Interrupt Method . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Figure A-4: LAPP 3 Buffer Grouping for Two-Interrupt Method . . . . . . . . . . . . . . . . A-10
CLK Waveform for 5 V Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
CLK Waveform for 3.3 V Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Input Setup and Hold Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Output Valid Delay Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Output Tri-State Delay Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
EEPROM Read Functional Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Automatic PREAD EEPROM Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
JTAG (IEEE 1149.1) TCK Waveform for 5 V Signaling . . . . . . . . . . . . . . 276
JTAG (IEEE 1149.1) Test Signal Timing . . . . . . . . . . . . . . . . . . . . . . . . . 277
Transmit Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Receive Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
MDC Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Management Data Setup and Hold Timing . . . . . . . . . . . . . . . . . . . . . . . 280
Management Data Output Valid Delay Timing . . . . . . . . . . . . . . . . . . . . . 280
Reject Timing - External PHY MII @ 25 MHz . . . . . . . . . . . . . . . . . . . . . 281
Reject Timing - External PHY MII @ 2.5 MHz . . . . . . . . . . . . . . . . . . . . . 282
Receive Frame Tag Timing with Media Independent Interface . . . . . . . . 283
External Memory Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
P R E L I M I N A R Y
Am79C976
13
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