MPC8313E datasheet(36/92 Pages) FREESCALE

36 / 92 page

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

Freescale Semiconductor

USB

Figure 20. USB Signals

9.2

On-Chip USB PHY

This section describes the DC and AC electrical specifications for the on-chip USB PHY of the

MPC8313E. See chapter 7 in the USB Specifications Rev 2.0 for more information.

Table 40 provides the USB clock input (USB_CLK_IN) DC timing specifications.

Table 41 provides the USB clock input (USB_CLK_IN) AC timing specifications.

Table 40. USB_CLK_IN DC Electrical Characteristics

Parameter

Symbol

Min

Max

Unit

Input high voltage

VIH

2.7

NVDD +0.3

Input low voltage

VIL

–0.3

0.4

Table 41. USB_CLK_IN AC Timing Specifications

Parameter/Condition

Conditions

Symbol

Min

Typical Max Unit

Frequency range

—

fUSB_CLK_IN

—24

—

MHz

Clock frequency tolerance

—

tCLK_TOL

–0.05

0.05

Reference clock duty cycle

Measured at 1.6 V

tCLK_DUTY

Total input jitter/Time interval error Peak to peak value measured with a second

order high-pass filter of 500 kHz bandwidth

tCLK_PJ

—

200

Output Signals:

tUSKHOV

USBDR_CLK

Input Signals

tUSIXKH

tUSIVKH

tUSKHOX

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