2.3.4.5 3.3V PCI, 3.3V PCI-X

Peripheral Component Interface for 3.3V standard specifies support for 33 MHz and 66 MHz PCI Bus applications.

Table 2-60. Minimum and Maximum DC Input and Output Levels
3.3V PCI/PCI-X VIL VIH VOL VOH IOL IOH IOSL IOSH IIL IIH
Drive Strength Min.
V Max.
V Min.
V Max.
V Max.
V Min.
V mA mA Max.
mA1 Max.
mA1 µA2 µA2
Per PCI specification Per PCI curves 15 15
Note:
  1. Currents are measured at high temperature (100 °C junction temperature) and maximum voltage.
  2. Currents are measured at 125 °C junction temperature.

AC loadings are defined per the PCI/PCI-X specifications for the datapath; SoC Products Group loadings for enable path characterization are described in the following figure.

Figure 2-20. AC Loading

AC loadings are defined per PCI/PCI-X specifications for the datapath; SoC Products Group loading for tristate is described in Table 2-61.

Table 2-61. AC Waveforms, Measuring Points, and Capacitive Loads
Input Low (V) Input High (V) Measuring Point1 (V) VREF (typ.) (V) CLOAD (pF)
0 3.3 0.285 * VCCxxxxIOBx for tDP(R)

0.615 * VCCxxxxIOBx for tDP(F)

 — 10
Note:
  1. Measuring point = Vtrip. See Table 2-22 for a complete table of trip points.