AMD Geodeā„¢ SC2200 Processor Data Book 393
Electrical Specifications 32580B
Figure 9-14. PCICLK Timing and Measurement PointsTable 9-19. PCI Clock Parameters
Symbol Parameter Min Max Unit Comments
tCYC PCICLK cycle time 30 ns Note 1
tHIGH PCICLK high time 11 ns Note 2
tLOW PCICLK low time 11 ns Note 2
PCICLKsr PCICLK slew Rate 1 4 V/ns Note 3
PCIRSTsr PCIRST# slew Rate 50 - mV/ns Note 4
Note 1. Clock frequency is between nominal DC and 33 MHz. Device operational parameters at frequencies under 16 MHz
are not 100% tested. The clock can only be stopped in a low state.
Note 2. Guaranteed by characterization.
Note 3. Slew rate must be met across the minimum peak-to-peak portion of the clock waveform (see Figure 9-14).
Note 4. The minimum PCIRST# slew rate applies only to the rising (de-assertion) edge of the reset signal. See Figure 9-18
for PCIRST# timing.
tHIGH
0.4 VIO, p-to-p
(minimum)
0.6VIO
0.2VIO
0.5 VIO
0.4 VIO
0.3 VIO
tCYC
tLOW
PCICLK