mcimx27- Freescale Semiconductor, Inc, mcimx27- Datasheet - Page 98

• Manufacturer Part Number: mcimx27-
• Description: Multimedia Applications Processor
• Manufacturer: Freescale Semiconductor, Inc

Signal Descriptions
3.6.14.2
98
TX Rise/Fall Time
TX Rise/Fall Time
TX Rise/Fall Time
TX Duty Cycle
Enable Delay
Disable Delay
RX Rise/Fall Time
RX Rise/Fall Time
Parameter
USB_TXOE_B
USB_SE0_VM
USB_DAT_VP
USB_RCV
USB_VM1
USB_VP1
Name
DAT_SE0 Unidirectional Mode
Table 52. OTG Port Timing Specification in DAT_SE0 Bidirectional Mode
Figure 62. USB Transmit Waveform in DAT_SE0 Unidirectional Mode
Table 53. Signal Definitions—DAT_SE0 Unidirectional Mode
USB_SE0_VM
USB_TXOE_B
USB_SE0_VM
USB_SE0_VM
USB_SE0_VM
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
USB_DAT_VP
Signal Name
Preliminary—Subject to Change Without Notice
Direction
i.MX27 and i.MX27L Data Sheet, Rev. 1.2
Out
Out
Out
In
In
In
Direction
Out
Out
Out
Out
In
In
In
In
Buffered data on DM when USB_TXOE_B is high.
Buffered data on DP when USB_TXOE_B is high.
Differential RX data when USB_TXOE_B is high.
SE0 drive when USB_TXOE_B is low.
49.0
Min
TX data when USB_TXOE_B is low.
—
—
—
—
—
—
—
Transmit enable, active low
Signal Description
Max
51.0
10.0
5.0
5.0
5.0
8.0
3.0
3.0
Unit
ns
ns
ns
ns
ns
ns
ns
%
Freescale Semiconductor
USB_DAT_VP
USB_SE0_VM
Reference Signal
USB_TXOE_B
USB_TXOE_B
Conditions/
50 pF
50 pF
50 pF
35 pF
35 pF
—