MPC8541E datasheet(41/84 Pages) FREESCALE

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MPC8541E PowerQUICC™ III Integrated Communications Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

CPM

10 CPM

This section describes the DC and AC electrical specifications for the CPM of the MPC8541E.

10.1

CPM DC Electrical Characteristics

Table 32 provides the DC electrical characteristics for the CPM.

10.2

CPM AC Timing Specifications

Table 33 and Table 34 provide the CPM input and output AC timing specifications, respectively.

Table 32. CPM DC Electrical Characteristics

Characteristic

Symbol

Condition

Min

Max

Unit

Notes

Input high voltage

VIH

2.0

3.465

Input low voltage

VIL

GND

0.8

1, 2

Output high voltage

VOH

IOH = –8.0 mA

2.4

—

Output low voltage

VOL

IOL = 8.0 mA

—

0.5

Output high voltage

VOH

IOH = –2.0 mA

2.4

—

Output low voltage

VOL

IOL = 3.2 mA

—

0.4

Table 33. CPM Input AC Timing Specifications 1

Characteristic

Symbol 2

Min3

Unit

FCC inputs—internal clock (NMSI) input setup time

tFIIVKH

6ns

FCC inputs—internal clock (NMSI) hold time

tFIIXKH

0ns

FCC inputs—external clock (NMSI) input setup time

tFEIVKH

2.5

FCC inputs—external clock (NMSI) hold time

tFEIXKHb2

SPI inputs—internal clock (NMSI) input setup time

tNIIVKH

6ns

SPI inputs—internal clock (NMSI) input hold time

tNIIXKH

0ns

SPI inputs—external clock (NMSI) input setup time

tNEIVKH

4ns

SPI inputs—external clock (NMSI) input hold time

tNEIXKH

2ns

PIO inputs—input setup time

tPIIVKH

8ns

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