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M30245 Group
Confirming of receive data
(b15)
b7
0
0
Note 1: There is no receive data in FIFO 0 when this bit is set to "0".
Reading of receive data
(b15)
b7
Setting of receive device address to USB address register (Note 2)
(b15)
b7
0
0
0
0
Note 2: Only the lower 1-byte of the receive device address should be set.
Setting of USB endpoint 0 control and status reister. Continued on a status stage.
(b15)
b7
0
0
Figure 2.8.36. Processing routine (1) for getting device address when receiving SET_ADDRESS request
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Receiving of endpoint 0 setup packet
(b8)
b0
b7
(b8)
b0
b7
The data equal to receive byte count are read (setup packet is 8-byte).
Store the receive data in user definition RAM.
bRequest: 05
Is a request valid?
USB addrtess register:
(b8)
b0
b7
0
0
0
0
0
(b8)
b0
b7
1
1
1
Waiting for completion of status phase
Completion of SET_ADDRESS request
page 178 of 354
b0
USB endpoint 0 control and status register
EP0CS [Address 0298
OUT_BUF_RDY flag (Note 1)
0 : Reading data packet is complete
1 : Data packet reception is compete
SETUP flag
0 : Data packet reception
1 : SETUP packet reception
b0
USB endpoint 0 OUT FIFO data register
EP0O [Address 02E2
≠
?
16
=
≠
=
Valid
≠
00
?
16
=
Getting of address (default state)
USB address register
b0
USBA [Address 0280
Set the third byte (the lower of wValue) of reception data
USB endpoint 0 control and status register
b0
EP0CS [Address 0298
CLR_OUT_BUF_RDY bit
1 : Clear OUT_BUF_RDY flag
CLR_SETUP flag
1 : Clear SETUP flag
SET_DATA_END bit
1 : Set DATA_END flag to "1"
2. USB function
]
16
]
16
To processing routine of
other standard requests
To processing of request invalid
Getting of new address
(continued on next page)
]
16
]
16
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