MPC8313E datasheet(35/92 Pages) FREESCALE

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MPC8313E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 1

Freescale Semiconductor

USB

9USB

9.1

USB Dual-Role Controllers

This section provides the AC and DC electrical specifications for the USB interface.

9.1.1

USB DC Electrical Characteristics

Table 38 provides the DC electrical characteristics for the USB interface.

9.1.2

USB AC Electrical Specifications

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

Figure 19 and Figure 20 provide the AC test load and signals for the USB, respectively.

Figure 19. USB AC Test Load

Table 38. USB DC Electrical Characteristics

Parameter

Symbol

Min

Max

Unit

High-level input voltage

VIH

2.0

LVDDB+ 0.3

Low-level input voltage

VIL

–0.3

0.8

Input current

IIN

—±5

μA

High-level output voltage, IOH = –100 μAVOH

LVDDB – 0.2

—

Low-level output voltage, IOL = 100 μAVOL

—0.2

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

Parameter

Symbol 1

Min

Max

Unit

Notes

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—

—

Note:

1. The symbols used for timing specifications herein follow the pattern of t(First two letters of functional block)(signal)(state) (reference)(state)

for inputs and t(First two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tUSIXKH symbolizes USB

timing (USB) for the input (I) to go invalid (X) with respect to the time the USB clock reference (K) goes high (H). Also, tUSKHOX

symbolizes us timing (USB) for the USB clock reference (K) to go high (H), with respect to the output (O) going invalid (X) or

output hold time.

Output

Z0 = 50 Ω

NVDD/2

RL = 50 Ω

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