User's Manual l STK-MBa53 UM 100 l © 2013 TQ-Group
Page 26
4.2.3
USB 2.0 Hi-Speed OTG
The USB-OTG interface of the TQMa53 is provided on the STK-MBa53. The OTG compatibility is achieved by a 5-pin Micro-AB
receptacle.
The ID signal is directly routed to the CPU. USB 2.0 has been implemented, which works in the Hi-Speed, Full-Speed or Low-
Speed mode.
Illustration 19: Block diagram USB 2.0 Hi-Speed OTG
Illustration 20: Position of USB Micro-AB connector X16
Table 32:
USB type Micro-AB connector X16
Manufacturer / number
Description
Tyco / 1981584-1
•
USB receptacle, type Micro-AB
•
Right angle
•
10,000 mating cycles
•
–30 °C to +85 °C
Table 33:
Pin assignment USB OTG connector X16
Pin
Pin name
Signal
Dir.
Remark
1
VBUS
USB_OTG_VBUS (EMI Filter )
P
100 µF to DGND, IIII
max
max
max
max
= 100 mA
= 100 mA
= 100 mA
= 100 mA
2
D–
USBOTG_D–
I/O
Additional common mode choke in series and bidirectional ESD-diode
3
D+
U
I/O
Additional common mode choke in series and bidirectional ESD-diode
4
ID
USB_OTG_ID
I
–
5
Ground
DGND
P
–
M1..6 –
DGND
P
–
# - low active signal, - element to VCC5V (pull-up), - element to ground (pull-down), - element in series
