AMD-762 Datasheet, PDF (67/122 Pages) Advanced Micro Devices – System Controller

24416C—December 2001
Preliminary Information
AMD-762™ System Controller Data Sheet
Table 17. AGPCLK Switching Requirements for 66-MHz Bus Operation
Symbol
Parameter Description
Preliminary Data
Min
Max
1/t1
Frequency
66 MHz
t₂
AGPCLK High Time
6.0 ns
t₃
AGPCLK Low Time
6.0 ns
AGPCLK Fall Time
0.15 ns
2 ns
AGPCLK Rise Time
0.15 ns
2 ns
t_SKEW
SYSCLK to AGPCLK Skew
–500 ps
500 ps
AGPCLK Period Stability
± 300 ps
*_{This table contains preliminary information, which is subject to change.}
Figure
13
13
13
14
Table 18. PCICLK Switching Requirements for 33-MHz PCI Bus*
Symbol
Parameter Description
Preliminary Data
Min
Max
t₁
PCICLK Cycle
30 ns
∞
t₂
PCICLK High Time
11.0 ns
t₃
PCICLK Low Time
11.0 ns
PCICLK Fall Time
1 V/ns
2 V/ns
PCICLK Rise Time
1 V/ns
2 V/ns
PCICLK Period Stability
± 300 ps
*_{This table contains preliminary information, which is subject to change.}
Figure
13
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Comments
Rising to rising edges
1.5-V reference
Comments
1.5-V reference
t₂
0.5 VDD_PCI
0.4 VDD_PCI
t₃
0.3 VDD_PCI
t₁
Figure 13. AGPCLK and PCICLK Waveform
Chapter 4
Electrical Data
55