MPC8377E datasheet(33/124 Pages) FREESCALE

부품명	MPC8377E

상세설명	PowerQUICC??II Pro Processor Hardware Specifications

PDF	124 Pages

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MPC8377E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 2

Freescale Semiconductor

Local Bus

9.2

USB AC Electrical Specifications

Table 34 describes the general timing parameters of the USB interface of the device.

Figure 17 and Figure 18 provide the AC test load and signals for the USB, respectively.

Figure 17. USB AC Test Load

Figure 18. USB Interface Timing Diagram

10 Local Bus

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

MPC8377E.

Table 34. USB General Timing Parameters (ULPI Mode Only)

Parameter

Symbol 1

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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