MCIMX257DJM4A Freescale, MCIMX257DJM4A Datasheet - Page 119

• Manufacturer Part Number: MCIMX257DJM4A
• Manufacturer: Freescale

Specifications of MCIMX257DJM4A

• Operating Temperature (min): -20C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Table 89
3.7.20.1.2
Table 90
Figure 91
Freescale Semiconductor
US1
US2
US3
US4
US5
US6
US7
US8
No.
Transmit
USB_SE0_VM
USB_DAT_VP
USB_TXOE_B
USB_SE0_VM
USB_DAT_VP
USB_RCV
USB_VM1
USB_VP1
shows the OTG port timing specification in DAT_SE0 bidirectional mode.
defines the DAT_SE0 unidirectional mode signals.
shows the USB transmit waveform in DAT_SE0 unidirectional mode diagram.
Name
Rx rise/fall time
Rx rise/fall time
Tx rise/fall time
Tx rise/fall time
Tx rise/fall time
Disable Delay
Enable Delay
Tx duty cycle
Parameter
DAT_SE0 Unidirectional Mode Timing
Table 89. OTG Port Timing Specification in DAT_SE0 Bidirectional Mode
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 6
Figure 91. USB Transmit Waveform in DAT_SE0 Unidirectional Mode
Table 90. Signal Definitions—DAT_SE0 Unidirectional Mode
Direction
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
US12
Out
Out
Out
In
In
In
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
Direction
Out
Out
Out
Out
In
In
In
In
US9
Min.
49.0
—
—
—
—
—
—
—
Signal Description
Max.
51.0
10.0
8.0
5.0
5.0
5.0
3.0
3.0
Unit
ns
ns
ns
ns
ns
ns
ns
%
US10
Reference Signal
USB_TXOE_B
USB_TXOE_B
Conditions/
50 pF
50 pF
50 pF
35 pF
35 pF
—
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