MPC8308 datasheet(43/88 Pages) FREESCALE

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MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 1

Freescale Semiconductor

Enhanced Local Bus

Figure 29. Compliance Test/Measurement Load

12 Enhanced Local Bus

This section describes the DC and AC electrical specifications for the enhanced local bus interface.

12.1

Enhanced Local Bus DC Electrical Characteristics

Table 36 provides the DC electrical characteristics for the local bus interface.

Note: The parameters stated in above table are valid for all revisions unless explicitly mentioned.

12.2

Enhanced Local Bus AC Electrical Specifications

Table 37 describes the general timing parameters of the local bus interface.

Table 36. Local Bus DC Electrical Characteristics at 3.3 V

Parameter

Symbol

Min

Max

Unit

High-level input voltage

VIH

2.0

NVDD + 0.3

Low-level input voltage

VIL

–0.3

0.8

Input current, (VIN

1 = 0 V or V

IN = LVDD)IIN

—

±5

μA

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

VOH

NVDD – 0.2

—

Low-level output voltage, (LVDD = min, IOH = 2 mA)

VOL

—0.2

Table 37. Local Bus General Timing Parameters

Parameter

Symbol 1

Min

Max

Unit

Notes

Local bus cycle time

tLBK

—

Input setup to local bus clock (Note: to be revisited)

tLBIVKH

—

3, 4

Input hold from local bus clock (Note: to be revisited)

tLBIXKH

—

3, 4

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