REL1.3
Page 20 of 80
RZ/G1M/G1N Qseven SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.6.5
USB 2.0 OTG Interface
The RZ/G1M/G1N Qseven SOM supports One USB2.0 OTG interface on Qseven Edge connector. RZ/G1M/G1N
CPU’s
USB0 OTG controller with integrated PHY is used for OTG interface which supports USB2.0 High-Speed (480
Mbps)/Full-Speed (12 Mbps)/Low-Speed (1.5 Mbps) transfer. RZ/G1M/G1N
CPU’s
USB0 OTG controller can operate in
Host or Function (Peripheral) mode.
The RZ/G1M/G1N
CPU’s
USB0 PHY output is directly connected to Qseven Edge connector USB Port1. Also USB VBUS
& USB ID input from Qseven Edge connector is connected to RZ/G1M/G1N
CPU’s
VBUS & GPIO (GP1_11) pins
correspondingly. USB_DRIVE_VBUS to Qseven Edge connector is connected from RZ/G1M/G1N CP
U’s
USB0_PWEN pin
for controlling USB0 VBUS power.
For more details, refer Qseven Edge connector pins 56, 91, 92, 93 & 95 on
2.6.6
USB 2.0 Host Interface
The RZ/G1M/G1N Qseven SOM supports two USB2.0 Host interface on Qseven Edge connector. To support two USB2.0
Host interfaces, SOM includes two-port USB hub
“USB2422” f
rom Microchip. This Hub is interfaced with RZ/G1M/G1N
CPU using USB1 Host controller (with integrated PHY) which supports USB2.0 High-Speed (480 Mbps)/Full-Speed (12
Mbps)/Low-Speed (1.5 Mbps) transfer.
Two port USB hub Outputs are connected to Qseven Edge connector USB Port0 and Port2. Also over current input of
USB Port0 & 1 and USB Port2 from Qseven Edge connector are connected to USB hub OCS1 and OCS2 pins
correspondingly for over current detection.
For more details, refer Qseven Edge connector pins 85, 86, 88, 90, 94 & 96 on
2.6.7
SD Interface
The RZ/G1M/G1N Qseven SOM supports one SD interface port on Qseven Edge connector. RZ/G1M/G1N
CPU’s SDHI2
controller is used for SD interface. It supports 1-bit or 4-bit transfer mode for SD memory/SDIO and works upto SDR50
class transfer rate at max. 48 Mbytes/s @ 97.5 MHz. RZ/G1M/G1N CPU supports SDIO card detect function & write
protect function and connected from Qseven Edge connector. It also supports SDIO power enable & Status LED output
on Qseven Edge connector and connected from RZ/G1M/G1N GPIOs GP1_16 & GP1_14 correspondingly.
The RZ/G1M/G1N Qseven SOM supports configurable IO voltage levels for SDHI2 lines which can be controlled through
CPU GPIO GP2_30. If GP2_30 is set to low, then 1.8V IO level is selected for SDHI2 lines. If GP2_30 is set to high, then
3.3V IO level is selected for SDHI2 lines.
For more details, refer Qseven Edge connector pins 42 to 51 on
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