SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 1079

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

39.5.1.8
Table 39-4.
Note:
39.5.1.9
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
00b
01b
10b
11b
1. “On-The-Go Supplement to the USB 2.0 Specification Revision 1.0a”.
Customizing of OTG Timers
Plug-In Detection
Customizing of OTG Timers
AWaitVrise Time-Out
(see OTG Standard
Section 6.6.5.1)
100 ms
20 ms
50 ms
70 ms
0b00
The pad goes to the Idle state if the macro is disabled or if the UOTGHS_DEVCTRL.DETACH
bit is written to one. It returns to the Active state when UOTGHS_CTRL.USBE is written to one
and UOTGHS_DEVCTRL.DETACH is written to zero.
It is possible to refine some OTG timers thanks to the Timer Page (UOTGHS_CTRL.TIMPAGE)
and Timer Value (UOTGHS_CTRL.TIMVALUE) fields, as shown in
U O T G H S _ C T R L . T I M P A G E i s u s e d t o s e l e c t t h e O T G t i m e r t o a c c e s s w h i l e
UOTGHS_CTRL.TIMVALUE indicates the time-out value of the selected timer.
UOTGHS_CTRL.TIMPAGE and UOTGHS_CTRL.TIMVALUE can be read or written. Before
writing them, the user shall unlock write accesses by writing a one to the Timer Access Unlock
(UOTGHS_CTRL.UNLOCK) bit. This is not required for read accesses, except before accessing
UOTGHS_CTRL.TIMPAGE if it has to be written in order to read the UOTGHS_CTRL.TIM-
VALUE field of another OTG timer.
The USB connection is detected from the VBUS pad.
architecture of the plug-in detector.
Figure 39-10. Plug-In Detection Input Block Diagram
(1)
VBUS
VbBusPulsing Time-Out
(see OTG Standard
Section5.3.4)
Pad Logic
23 ms
31 ms
40 ms
15 ms
0b01
GND
VDD
(1)
TIMPAGE
Session_valid
Va_Vbus_valid
VBus_pulsing
VBus_discharge
PdTmOutCnt Time-Out
(see OTG Standard
Section 5.3.2)
Logic
105 ms
118 ms
131 ms
93 ms
0b10
Figure 39-10 on page 1079
UOTGHS_SR
VBUS
(1)
Table 39-4 on page
0b11
SRPDetTmOut Time-Out
(see OTG Standard
Section 5.3.3)
10 μs
100 μs
1 ms
11 ms
SAM3X/A
SAM3X/A
UOTGHS_SR
VBUSTI
shows the
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(1)
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