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Bit names
Bit11-10
Reserved
Bit9
STAL
Bit8-7
Reserved
Bit6-0
PSK0
• Do not use
• Setting the STAL bit can put EndPoint0 in STALL status
(STALL response).
• The STALL response is continued to the host while the STAL
bit is set. The USB Function returns from STALL status when it
receives a normal SETUP packet after the STAL bit is
deselected
• Do not use
• It specifies the maximum number of transfer bytes per packet.
The maximum number of transfer bytes per packet that
EndPoint0 can specify is 64 bytes, which is a setting common to
IN and OUT. <Example> "08
(maximum specified value)
• Setting a value not less than the maximum number of
transfer bytes (40
) and "00
H
CHAPTER 29 USB FUNCTION
Function
"→8 Byte, "40
H
H
" is forbidden.
H
"→64 Byte
731
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