m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 189

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.8.38. Device configuration notification processing routine (1) when receiving
(b15)
(b15)
Reading of receive data
b7
Writing of transmit data on data stage
(b15)
b7
Note 1: There is no receive data in FIFO 0 when this bit is set to “0”.
Setting of USB endpoint 0 control and status register. Continued on a status stage.
(b15)
Confirming of receive data
b7
0
b7
0
0
0
GET_CONFIGURATION request
page 180 of 354
(b8)
(b8)
b0
b0
(b8)
b0
(b8)
1
b0
b7
b7
b7
b7
1
Receiving of endpoint 0 setup packet
The data equal to receive byte count are read (setup packet is 8-byte).
Store the receive data in user definition RAM.
Continued on next page
Is a request valid?
bRequest: 08
b0
b0
b0
b0
=
=
USB endpoint 0 control and status register
EP0CS [Address 0298
CLR_OUT_BUF_RDY bit
CLR_SETUP flag
USB endpoint 0 OUT FIFO data register
EP0O [Address 02E2
USB endpoint 0 IN FIFO data register
EP0I [Address 02E0
Write the configuration value one byte
16
USB endpoint 0 control and status register
EP0CS [Address 0298
OUT_BUF_RDY flag (Note 1)
SETUP flag
1 : Clear OUT_BUF_RDY flag
1 : Clear SETUP flag
0 : Reading data packet is complete
1 : Data packet reception is compete
0 : Data packet reception
1 : SETUP packet reception
Valid
?
16
16
16
To processing routine of
To processing of request invalid
]
16
other standard requests
]
]
]
2. USB function