AM79C978A AMD [Advanced Micro Devices], AM79C978A Datasheet - Page 226
![no-image](/images/no-image-200.jpg)
AM79C978A
Manufacturer Part Number
AM79C978A
Description
Single-Chip 1/10 Mbps PCI Home Networking Controller
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM79C978A.pdf
(256 pages)
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SWITCHING WAVEFORMS: SYSTEM BUS INTERFACE
226
CLK
CLK
AD[31:00], C/BE[3:0],
PAR, FRAME, IRDY,
0.3 V DD_PCI
DEVSEL, IDSEL
0.5 V DD_PCI
0.4 V DD_PCI
TRDY, STOP,
0.8 V
1.5 V
GNT
2.0 V
CLK
Figure 58. CLK Waveform for 3.3 V Signaling
Figure 57. CLK Waveform for 5 V Signaling
Figure 59. Input Setup and Hold Timing
t RISE
t RISE
0.6 V DD_PCI
t HIGH
t HIGH
2.4 V
Am79C978A
Tx
t SU(GNT)
t CYC
t CYC
t FALL
t FALL
t SU
0.2 V DD_PCI
t LOW
t LOW
0.4 V
t H(GNT)
t H
Tx
0.8 V
0.3 V DD_PCI
1.5 V
2.0 V
0.4 V DD_PCI
0.5 V DD_PCI
22399A-60
22399A-62
22399A-61
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