Operation Of Usb Mini-Host - Fujitsu F2MC-16LX Hardware Manual

CHAPTER 14 USB Mini-HOST
14.5

Operation of USB Mini-HOST

The operation of USB Mini-HOST is explained.
Connection of device
The software detects that the external USB device was connected.
Reset of USB bus
USB bus is reset.
Token packet
Three kinds of tokens can be selected at the host mode.
Data packet
The data packet is transmitted and received.
Handshake packet
It informs send/receive partners of status via handshake packet.
Retry function
When an error etc. occur at the packet termination, the retry operation is continued.
SOF INTERRUPT
The interruption is generated.
Error status
Various errors are displayed.
Packet end
When the packet ends, the interruption is generated.
Suspend-resume
It puts the USB circuit in suspend-resume status.
Cutting of device
The detection of the status of Mini-HOST pins determines the disconnection.
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