PCIMX515DJM8C Datasheet, PDF (146/202 Pages) Freescale Semiconductor, Inc – Processors for Consumer and Industrial Products

Electrical Characteristics
Table 114. Definitions of USB Receive Waveform in DAT_SE0 Bi-Directional Mode
ID
Parameter
Signal Name
Direction Min
Max
US1 TX Rise/Fall Time
USB_DAT_VP
Out
—
5.0
US2 TX Rise/Fall Time
USB_SE0_VM
Out
—
5.0
US3 TX Rise/Fall Time
USB_TXOE_B
Out
—
5.0
US4 TX Duty Cycle
USB_DAT_VP
Out
49.0
51.0
US7 RX Rise/Fall Time
USB_DAT_VP
In
—
3.0
US8 RX Rise/Fall Time
USB_SE0_VM
In
—
3.0
Unit
Conditions/
Reference Signal
ns
50 pF
ns
50 pF
ns
50 pF
%
—
ns
35 pF
ns
35 pF
4.7.17.1.2 USB DAT_SE0 Unidirectional Mode
Table 115 shows the signal definitions in DAT_SE0 unidirectional mode
Table 115. Signal Definitions—DAT_SE0 Unidirectional Mode
Name
USB_TXOE_B
USB_DAT_VP
USB_SE0_VM
USB_VP1
USB_VM1
USB_RCV
Direction
Out
Out
Out
In
In
In
Signal Description
Transmit enable, active low
TX data when USB_TXOE_B is low
SE0 drive when USB_TXOE_B is low
Buffered data on DP when USB_TXOE_B is high
Buffered data on DM when USB_TXOE_B is high
Differential RX data when USB_TXOE_B is high
Figure 102 and Figure 103 shows the USB transmit/receive waveform in DAT_SE0 uni-directional mode
respectively.
Transmit
US11
USB_TXOE_B
USB_DAT_VP
USB_SE0_VM
US9
US12
US10
Figure 102. USB Transmit Waveform in DAT_SE0 Uni-directional Mode
i.MX51 Applications Processors for Consumer and Industrial Products, Rev. 6
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