MPC8548CVTAQJ datasheet(56/144 Pages) FREESCALE

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MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 6

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

—

Low-level input voltage

VIL

–0.3

0.8

—

Input current (VIN = 0 V or VIN = VDD)IIN

—±5

μA2

High-level output voltage (OVDD = min, IOH = –2 mA)

VOH

2.4

—

Low-level output voltage (OVDD = min, IOL = 2 mA)

VOL

—0.4

—

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

SDA

SCL

tI2CF

tI2SXKL

tI2CL

tI2CH

tI2DXKL,tI2OVKL

tI2DVKH

tI2SXKL

tI2SVKH

tI2KHKL

tI2PVKH

tI2CR

tI2CF

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