27.20
Universal Serial Bus (USB) Controller
The Tiva™ C Series USB controller electrical specifications are compliant with the
Universal Serial
Bus Specification Rev. 2.0
(full-speed and low-speed support) and the
On-The-Go Supplement to
the USB 2.0 Specification Rev. 1.0
. Some components of the USB system are integrated within the
TM4C1294NCPDT microcontroller and specific to the Tiva™ C Series microcontroller design.
Note:
GPIO pin, PB1, which can be configured as the
USB0VBUS
signal, is the only pin which is
5-V tolerant on the device.
Table 27-57. ULPI Interface Timing
Unit
Max
Nom
Min
Parameter Name
Parameter
Parameter
No.
Timings with respect to external clock source input to
USB0CLK
ns
-
-
4.8
Setup time (control in)
USB0DIR
,
USB0NXT
T
SUC
U1
ns
-
-
3.5
Setup Time (data in)
USB0Dn
T
SUD
U2
ns
-
-
0
Hold Time (control in)
USB0DIR
,
USB0NXT
T
HTC
U3
ns
-
-
0
Hold Time (data in)
USB0Dn
T
HTD
U4
ns
9.5
-
3.7
Output Delay (control out)
USB0STP
T
ODC
U5
ns
9.5
-
3.7
Output Delay (data out)
USB0Dn
T
ODD
U6
Timings with
USB0CLK
as clock output
ns
-
-
6.0
Setup time (control in)
USB0DIR
,
USB0NXT
T
SUC
U1
ns
-
-
4.6
Setup Time (data in)
USB0Dn
T
SUD
U2
ns
-
-
0
Hold Time (control in)
USB0DIR
,
USB0NXT
T
HTC
U3
ns
-
-
0
Hold Time (data in)
USB0Dn
T
HTD
U4
ns
10.6
-
4.0
Output Delay (control out)
USB0STP
T
ODC
U5
ns
10.6
-
4.0
Output Delay (data out)
USB0Dn
T
ODD
U6
1875
June 18, 2014
Texas Instruments-Production Data
Tiva
™
TM4C1294NCPDT Microcontroller