Seagate M9TU Manual descargar pdf (Pagina 57)

Spinpoint M9TU-USB 3.0 Product Manual REV 1.0

USB INTERFACE AND USB COMMANDS

6.3.6 USB Device Generic Framework

This chapter describes the common attributes and operations of the protocol layer of a USB device.

6.3.6.1 USB Device State

A USB device has several possible states. Some of these states are visible to the USB and the host, while

others are internal to the USB device. This section describes those states.

This section describes USB device states that are externally visible (see Figure 6-29). Table 6-4 summarizes

the visible device states.

Note: USB devices perform a reset operation in response to reset signaling on the upstream facing port.

When reset signaling has completed, the USB device is reset.

Figure 6-29: Enumeration

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 97 98

Sin comentarios

Seagate M9TU Manual Pagina 57