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Chapter 3
Hardware
ReadyBoard 700
Reference Manual
43
USB Interfaces (J15A/B, J21A/B)
The ReadyBoard 700 contains one root USB hub with four functional USB ports. The PC-style (or
Standard) connector (J5A/B) provides two of the four USB ports (USB0 and USB1). The other two
USB ports share a single 10 pin header (J21A/B) on the board.
Features implemented in the USB ports include the following:
•
One root hub and two USB ports on connector (J15A/B)
•
One root hub and two USB ports on connector (J21A/B)
•
USB v.1.1 and Universal OHCI v.1.1 compatible
•
Integrated physical layer transceivers
•
Over-current fuses, located on the board, are used on all four USB ports
•
USB0 and USB1 have independent fuses and USB2 and USB3 share a single fuse on the board.
See Table 2-4.
Primary USB0 and USB1 (J15A/B)
Table 3-15. USB 1 & 2 Interface Pin/Signal Descriptions (J15/B)
Pin #
Signal
Description
1
+5V
+5V through a fuse (F1)
2
USBP0-
Universal Serial Bus Port 0 Data Negative
3
USBP0+
Universal Serial Bus Port 0 Data Positive
4
GND
Goes to ground thorough a choke
5
+5V
+5V ±5% through a fuse (F3)
6
USBP1-
Universal Serial Bus Port 1 Data Negative
7
USBP1+
Universal Serial Bus Port 1 Data Positive
8
GND
Goes to ground thorough a choke
Notes:
The shaded area denotes power or ground.
Secondary USB2 and USB3 (J21A/B)
Table 3-16. USB 2 & 3 Interface Pin/Signal Descriptions (J21A/B)
Pin #
Signal
Description
1, 2
+5V
+5V ±5% through a fuse (F4)
3
USBP2-
Universal Serial Bus Port 2 Data Negative
4
USBP3-
Universal Serial Bus Port 3 Data Negative
5
USBP2+
Universal Serial Bus Port 2 Data Positive
6
USBP3+
Universal Serial Bus Port 3 Data Positive
7, 8,
9, 10
GND
Goes to ground thorough a choke
Notes:
The shaded area denotes power or ground.
Summary of Contents for ReadyBoard 700
Page 1: ...ReadyBoard 700 Single Board Computer Reference Manual P N 5001722A Revision C ...
Page 6: ...Contents vi Reference Manual ReadyBoard 700 ...
Page 10: ...Chapter 1 About This Manual 4 Reference Manual ReadyBoard 700 ...
Page 60: ...Chapter 3 Hardware 54 Reference Manual ReadyBoard 700 ...
Page 78: ...Chapter 4 BIOS Setup 72 Reference Manual ReadyBoard 700 ...
Page 80: ...Appendix A Technical Support 74 Reference Manual ReadyBoard 700 ...
Page 88: ...Index 82 Reference Manual ReadyBoard 700 ...
Page 89: ......
Page 90: ......