参数资料
型号: MCIMX514AJM6C
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PBGA529
封装: 19 X 19 MM, 0.8 MM PITCH, ROHS COMPLIANT, BGA-529
文件页数: 49/172页
文件大小: 2218K
代理商: MCIMX514AJM6C
i.MX51A Automotive and Infotainment Applications Processors, Rev. 4
142
Freescale Semiconductor
Electrical Characteristics
Figure 102. USB Receive Waveform in DAT_SE0 Uni-directional Mode
Table 116 shows the USB port timing specification in DAT_SE0 uni-directional mode.
4.7.17.1.3
USB VP_VM Bi-Directional Mode
Table 117 shows the signal definitions in VP_VM bi-directional mode. Figure 103 and Figure 104 shows
the USB transmit/receive waveform in VP_VM bi-directional mode respectively.
Table 116. USB Port Timing Specification in DAT_SE0 Uni-Directional Mode
ID
Parameter
Signal Name
Signal
Source
Min
Max
Unit
Condition/
Reference Signal
US9
TX Rise/Fall Time
USB_DAT_VP
Out
5.0
ns
50 pF
US10 TX Rise/Fall Time
USB_SE0_VM
Out
5.0
ns
50 pF
US11 TX Rise/Fall Time
USB_TXOE_B
Out
5.0
ns
50 pF
US12 TX Duty Cycle
USB_DAT_VP
Out
49.0
51.0
%
US15 RX Rise/Fall Time
USB_VP1
In
3.0
ns
35 pF
US16 RX Rise/Fall Time
USB_VM1
In
3.0
ns
35 pF
US17 RX Rise/Fall Time
USB_RCV
In
3.0
ns
35 pF
Table 117. Signal Definitions—VP_VM Bi-Directional Mode
Name
Direction
Signal Description
USB_TXOE_B
Out
Transmit enable, active low
USB_DAT_VP
Out (Tx)
In (Rx)
TX VP data when USB_TXOE_B is low
RX VP data when USB_TXOE_B is high
USB_SE0_VM
Out (Tx)
In (Rx)
TX VM data when USB_TXOE_B low
RX VM data when USB_TXOE_B high
USB_RCV
In
Differential RX data
US16
US15/US17
USB_DAT_VP
USB_TXOE_B
Receive
USB_SE0_VM
USB_RCV
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