參數(shù)資料
型號: MPC8377ECVRANGA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 400 MHz, MICROPROCESSOR, PBGA689
封裝: 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
文件頁數(shù): 52/124頁
文件大?。?/td> 1462K
代理商: MPC8377ECVRANGA
MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
33
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
15
ns
Input setup to USB clock—all inputs
tUSIVKH
4—
ns
input hold to USB clock—all inputs
tUSIXKH
1—
ns
USB clock to output valid—all outputs
tUSKHOV
—7
ns
Output hold from USB clock—all outputs
tUSKHOX
2—
ns
Output
Z0 = 50 Ω
OVDD/2
RL = 50 Ω
Output Signals
tUSKHOV
USBDR_CLK
Input Signals
tUSIXKH
tUSIVKH
tUSKHOX
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