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RZ/G1M/G1N Qseven Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.7.2
USB2.0 Port0 (Host)
The RZ/G1M/G1N Qseven carrier Board supports USB2.0 High Speed Host interface through RZ/G1M/G1N CPU’s
USB1 interface. This USB2.0 Port0 signals of Qseven MXM connector is directly connected to USB2.0 TypeA combo
connector (J22).
The VBUS power of this USB2.0 connector is connected through current limit power switch which limits the current
above 500mA. If connected USB2.0 device takes more than 500mA current, this power switch limits the current to
constant mode and sends the over current indication signal to the over current indicator pin of Qseven MXM
connector USB port 0 & 1. This USB2.0 connector is physically located at the top of the board as shown below.
Figure 13: USB2.0 Port0 (Host)
Table 11: USB2.0 Port0 (Host) Connector Pin Out
Pin
No
Pin Name
Signal Name
Signal Type/
Termination
Description
A1
VCC_5V
V_HOST
O, 5V Power
5V Supply Voltage.
A2
USB_DM
USB_P0-
IO, DIFF
USB Host Port0 data negative.
A3
USB_DP
IO, DIFF
USB Host Port0 data positive.
A4
GND
GND
Power
Ground.