Contents
What is the meaning of unmount OTG?
Mounted: the card is integrated to your computer, phone or whatever and ready to use. Unmounted: the card isn’t integrated and can safely be removed, without causing damage.
What does OTG mean on a phone?
or On The Go adapter
An OTG or On The Go adapter (sometimes called an OTG cable, or OTG connector) allows you to connect a full sized USB flash drive or USB A cable to your phone or tablet through the Micro USB or USB-C charging port.
What does USB on the Go ( OTG ) mean?
Although OTG appears to add peer-to-peer connections to the USB world, it does not. Instead, USB OTG retains the standard USB host/peripheral model, in which a single host talks to USB peripherals. OTG does introduce, however, the dual-role device, or simply stated, a device capable of functioning as either host or peripheral.
Can a USB hot plug be used as an OTG device?
Finally, an ESD protection circuit is advisable on D+, D-, and V BUS pins because USB is designed to be hot-plugged. The Figure 1 circuit functions only as a USB peripheral device. To add OTG dual-role capability, the transceiver must be augmented to allow the OTG device to function as either host or peripheral.
What is the role of an OTG device?
Host Negotiation Protocol. An OTG dual-role device can operate either as a host or peripheral. In OTG nomenclature, the initial host is called the A-Device, and the initial peripheral is called the B-Device. The word initial is important. Once connected, OTG dual-role devices can exchange roles—host and peripheral—by using the new Host
Which is the host for the OTG cable?
The OTG device receiving the grounded ID pin is the default A-Device (host); the device with the floating ID pin is the default B-Device (peripheral). Figure 3. OTG cable is inserted backwards. To understand the need for the HNP and host/peripheral role reversal, the example in Figure 3 shows two dual-role devices, a PDA and a printer.