參數(shù)資料
型號: MCIMX27
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: Multimedia Applications Processor(多媒體應(yīng)用處理器)
中文描述: 多媒體應(yīng)用處理器(多媒體應(yīng)用處理器)
文件頁數(shù): 98/118頁
文件大?。?/td> 1159K
代理商: MCIMX27
i.MX27 Data Sheet, Advance Information, Rev. 0.1
98
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
Signal Descriptions
Figure 62. USB Receive Waveform in DAT_SE0 Unidirectional Mode
3.5.20.3
VP_VM Bidirectional Mode
Table 53. OTG Port Timing Specification in DAT_SE0 Unidirectional Mode
Parameter
Signal Name
Signal Source
Min
Max
Unit
Condition/
Reference Signal
TX Rise/Fall Time
USB_DAT_VP
Out
5.0
ns
50 pF
TX Rise/Fall Time
USB_SE0_VM
Out
5.0
ns
50 pF
TX Rise/Fall Time
USB_TXOE_B
Out
5.0
ns
50 pF
TX Duty Cycle
USB_DAT_VP
Out
49.0
51.0
%
Enable Delay
USB_DAT_VP
USB_SE0_VM
In
8.0
ns
USB_TXOE_B
Disable Delay
USB_DAT_VP
USB_SE0_VM
In
10.0
ns
USB_TXOE_B
RX Rise/Fall Time
USB_VP1
In
3.0
ns
35 pF
RX Rise/Fall Time
USB_VM1
In
3.0
ns
35 pF
RX Rise/Fall Time
USB_RCV
In
3.0
ns
35 pF
Table 54. Signal Definitions—VP_VM Bidirectional 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
VP, VM,
RCV
USB_DAT_VP/
USB_SE0_VM
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