AM79C971VCW Advanced Micro Devices, AM79C971VCW Datasheet - Page 213

• Manufacturer Part Number: AM79C971VCW
• Description: PCnet-FAST Single-Chip Full-Duplex 10/100 Mbps Ethernet Controller for PCI Local Bus
• Manufacturer: Advanced Micro Devices

SWITCHING WAVEFORMS: SYSTEM BUS INTERFACE
CLK
CLK
AD[31:00], C/BE[3:0],
PAR, FRAME, IRDY,
0.3 V DD_PCI
0.5 V DD_PCI
DEVSEL, IDSEL
0.4 V DD_PCI
TRDY, STOP,
0.8 V
Figure 63. CLK Waveform for 3.3 V Signaling
1.5 V
Figure 62. CLK Waveform for 5 V Signaling
GNT
CLK
2.0 V
Figure 64. Input Setup and Hold Timing
t RISE
t RISE
0.6 V DD_PCI
t HIGH
t HIGH
2.4 V
Am79C971
Tx
t SU(GNT)
t CYC
t FALL
t CYC
t SU
t FALL
0.2 V DD_PCI
t LOW
t LOW
0.4V
t H(GNT)
t H
Tx
0.8 V
1.5 V
0.3 V DD_PCI
2.0 V
0.4 V DD_PCI
0.5 V DD_PCI
20550D-65
20550D-66
20550D-67
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