MPC8358E datasheet(39/95 Pages) FREESCALE

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MPC8358E PowerQUICC II Pro Processor Revision 2.1 PBGA Silicon Hardware Specifications, Rev. 3

Freescale Semiconductor

Local Bus

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

MPC8358E.

9.1

Local Bus DC Electrical Characteristics

Table 38 provides the DC electrical characteristics for the local bus interface.

9.2

Local Bus AC Electrical Specifications

Table 39 describes the general timing parameters of the local bus interface of the device.

Timer alarm to output valid

tTMRAL

———

Notes:

1. The timer can operate on rtc_clock or tmr_clock. These clocks get muxed and any one of them can be selected. The

minimum and maximum requirement for both rtc_clock and tmr_clock are the same.

2. These are asynchronous signals.

3. Inputs need to be stable at least one TMR clock.

Table 38. Local Bus DC Electrical Characteristics

Parameter

Symbol

Min

Max

Unit

High-level input voltage

VIH

2OVDD + 0.3

Low-level input voltage

VIL

–0.3

0.8

High-level output voltage, IOH = –100 μAVOH

OVDD – 0.4

—

Low-level output voltage, IOL = 100 μAVOL

—0.2

Input current

IIN

—±10

μA

Table 39. Local Bus General Timing Parameters—DLL Enabled

Parameter

Symbol1

Min

Max

Unit

Notes

Local bus cycle time

tLBK

7.5

—

Input setup to local bus clock (except LUPWAIT)

tLBIVKH1

1.7

—

3, 4

LUPWAIT input setup to local bus clock

tLBIVKH2

1.9

—

3, 4

Input hold from local bus clock (except LUPWAIT)

tLBIXKH1

1.0

—

3, 4

LUPWAIT input hold from local bus clock

tLBIXKH2

1.0

—

3, 4

LALE output fall to LAD output transition (LATCH hold time)

tLBOTOT1

1.5

—

LALE output fall to LAD output transition (LATCH hold time)

tLBOTOT2

3.0

—

LALE output fall to LAD output transition (LATCH hold time)

tLBOTOT3

2.5

—

Table 37. IEEE 1588 Timer AC Specifications (continued)

Parameter

Symbol

Min

Max

Unit

Notes

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