Each Token Flow Chart Of Usb Mini-Host - Fujitsu F2MC-16LX Hardware Manual

14.6

Each Token Flow Chart of USB Mini-HOST

The flow chart of each token of USB Mini-HOST is as follows.
IN, OUT, SETUP Token
Figure 14.6-1 Flow Chart at IN, OUT, SETUP Token
IN,OUT,
SETUP TOKEN
YES
HADR change?
NO
IN TOKEN
NO
YES
EP1 DIR=1?
NO
YES
EP2C PKS
change?
NO
NO
Buffer direction
OK?
YES
NO
Buffer usable?
YES
Set toggle and Endpoint,
Execute TOKEN
CMPIRQ of
HIRQ=1?
YES
END
HADR change
YES
YES
EP1 DIR=1?
NO
NO
EP1 PKS
change?
YES
PKS change
Buffer direction change
Set Buffuer usable
NO
CHAPTER 14 USB Mini-HOST
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