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MPC8548CHXAQJA Datasheet(PDF) 56 Page - Freescale Semiconductor, Inc |
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MPC8548CHXAQJA Datasheet(HTML) 56 Page - Freescale Semiconductor, Inc |
56 / 144 page MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 6 56 Freescale Semiconductor PCI/PCI-X Figure 29 provides the AC test load for the I2C. Figure 33. I2C AC Test Load Figure 34 shows the AC timing diagram for the I2C bus. Figure 34. I2C Bus AC Timing Diagram 14 PCI/PCI-X This section describes the DC and AC electrical specifications for the PCI/PCI-X bus of the MPC8548E. Note that the maximum PCI-X frequency in synchronous mode is 110 MHz. 14.1 PCI/PCI-X DC Electrical Characteristics Table 47 provides the DC electrical characteristics for the PCI/PCI-X interface. Table 47. PCI/PCI-X DC Electrical Characteristics1 Parameter Symbol Min Max Unit Notes High-level input voltage VIH 2OVDD + 0.3 V — Low-level input voltage VIL –0.3 0.8 V — Input current (VIN = 0 V or VIN = VDD)IIN —±5 μA2 High-level output voltage (OVDD = min, IOH = –2 mA) VOH 2.4 — V — Low-level output voltage (OVDD = min, IOL = 2 mA) VOL —0.4 V — Notes: 1. Ranges listed do not meet the full range of the DC specifications of the PCI 2.2 Local Bus Specifications. 2. Note that the symbol VIN, in this case, represents the OVIN symbol referenced in Table 1 and Table 2. Output Z0 = 50 Ω OVDD/2 RL = 50 Ω Sr S SDA SCL tI2CF tI2SXKL tI2CL tI2CH tI2DXKL,tI2OVKL tI2DVKH tI2SXKL tI2SVKH tI2KHKL tI2PVKH tI2CR tI2CF PS |
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