KTGM45 Users Guide
KTD-N0793-L
Page 44
3.11
USB Connectors (USB)
The KTGM45 board contains two Enhanced Host Controller Interface (EHCI) host controllers that support
USB 2.0 allowing data transfers up to 480Mb/s. The KTGM45 boards also contains Six Universal Host
Controller Interface (UHCI Revision 1.1) controllers that support USB full-speed and low-speed signalling.
The KTGM45 board supports a total of twelve USB 2.0 ports. All twelve ports are high-speed, full-speed, and
low-speed capable and USB Legacy mode is supported.
Over-current detection on all twelve USB ports is supported.
USB Port 0 and 2 are supplied on the combined ETHER1, USB0, and USB2 connector.
USB Ports 1 and 3 are supplied on the internal FRONTPNL connector; please refer to the FRONTPNL
connector section for the pin-out.
USB Port 4 and 5 are supplied on the combined IEEE1394_1, USB4, and USB5 connector.
USB Port 6 and 7 are supplied on the USB6/7 internal pinrow connector.
USB Port 8 and 9 are supplied on the USB8/9 internal pinrow connector.
USB Port 10 and 11 are supplied on the USB10/11 internal pinrow connector.
Note
: It is required to use only HiSpeed USB cable, specified in USB2.0 standard:
3.11.1
USB Connector 0/2 (USB0/2)
USB Ports 0 and 2 are mounted together with ETHER1 Ethernet port.
Note 1:
In order to meet the requirements of USB standard, the 5V input supply must be at least 5.00V.
Note
Pull
U/D
Ioh/Iol Type
Signal
PIN
Signal Type Ioh/Iol
Pull
U/D
Note
1
-
-
PWR 5V/SB5V
1 2 3 4
GND
PWR
-
-
/15K 0.25/2
IO
USB2-
USB2+
IO
0.25/2 /15K
1
-
-
PWR 5V/SB5V
1 2 3 4
GND
PWR
-
-
/15K 0.25/2
IO
USB0-
USB0+
IO
0.25/2 /15K
Signal
Description
USB0+ USB0-
USB2+ USB2-
Differential pair works as Data/Address/Command Bus.
5V/SB5V
5V supply for external devices. SB5V is supplied during powerdown to allow wakeup
on USB device activity. Protected by resettable 1.1A fuse covering both USB ports.
Connector
