Fujitsu F2MC-16LX Hardware Manual page 362

CHAPTER 14 USB Mini-HOST
If you set the CANCEL bit of host control register 1 (HCNT1) to "0", the token set in the host token
endpoint register (HTOKEN) is executed after the SOF is sent.
Figure 14.5-7 Example of Token Cancel Operation when CANCEL Bit of HCNT1 is "1".
SOFIRQ bit of HIRQ
TKNEN bit of HTOKEN
CMPIRQ bit of HIRQ
Figure 14.5-8 Example of Token Cancel Operation when CANCEL Bit of HCNT1 is "0".
SOFIRQ bit of HIRQ
TKNEN bit of HTOKEN
CMPIRQ bit of HIRQ
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IN TOKEN write
EOF area
(000 ) (010 )
B B
IN TOKEN write
EOF area
(000 ) (010 )
B B
SOF
execution
(000 )
B
SOF IN TOKEN
execution execution
(000 )
B
"0"