MPC8378E datasheet(39/126 Pages) FREESCALE

Il numero della parte	MPC8378E

Spiegazioni elettronici	PowerQUICC??II Pro Processor Hardware Specifications

PDF	126 Pages

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Produttore elettronici	FREESCALE [Freescale Semiconductor, Inc]

Homepage	http://www.freescale.com

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MPC8378E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 2

Freescale Semiconductor

Local Bus

9.2

USB AC Electrical Specifications

Table 39 describes the general timing parameters of the USB interface of the device.

Figure 21 and Figure 22 provide the AC test load and signals for the USB, respectively.

Figure 21. USB AC Test Load

Figure 22. USB Interface Timing Diagram

10 Local Bus

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

MPC8378E.

Table 39. USB General Timing Parameters (ULPI Mode Only)

Parameter

Symbol1

Min

Max

Unit

USB clock cycle time

tUSCK

—

Input setup to USB clock—all inputs

tUSIVKH

4—

input hold to USB clock—all inputs

tUSIXKH

1—

USB clock to output valid—all outputs

tUSKHOV

—7

Output hold from USB clock—all outputs

tUSKHOX

2—

Output

Z0 = 50 Ω

OVDD/2

RL = 50 Ω

Output Signals

tUSKHOV

USBDR_CLK

Input Signals

tUSIXKH

tUSIVKH

tUSKHOX

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