I.MX27 Datasheet, PDF (103/148 Pages) Freescale Semiconductor, Inc – Multimedia Applications Processor

Electrical Characteristics
USB_TXOE_B
USB_DAT_VP
USB_SE0_VM
USB_SE0_VM
Figure 66. USB Transmit Waveform in VP_VM Unidirectional Mode
USB_TXOE_B
USB_VP1
USB_VM1
UH1_RXD
Figure 67. USB Receive Waveform in VP_VM Unidirectional Mode
i.MX27 and i.MX27L Data Sheet, Rev. 1.5
Freescale Semiconductor
103