R8A66597BG RENESAS [Renesas Technology Corp], R8A66597BG Datasheet - Page 72
R8A66597BG
Manufacturer Part Number
R8A66597BG
Description
ASSP (USB2.0 2 Port Host/1 Port Peripheral Controller)
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.R8A66597BG.pdf
(185 pages)
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R8A66597FP/DFP/BG
2.14 USB Request Register
Remarks
None
2.14.1 USB request bit (bRequest)
2.14.1.1 Selecting the Host Controller function
2.14.1.2 Selecting the Peripheral Controller function
2.14.2 USB request bit (bRmRequestType)
2.14.2.1 Selecting the Host Controller function
2.14.2.2 Selecting the Peripheral Controller function
R e v 1 . 0 1
♦ USB request type register [USBREQ]
15-8
7-0
Bit
15
0
0
The USB request register is the register for saving the control transfer Setup request. When the Peripheral Controller
function is selected, the received USB request value is stored. When the Host Controller function is selected, set the USB
request to be sent.
bRequest
request
bmRequest type
request type
Use the software to write to the USB request data value of the Setup transaction to be sent.
Use the software to write "SUREQ=1", but do not write the bit for the period until "SUREQ=0" is set by the controller.
The USB request data value received in the Setup transaction by the controller is displayed in this bit. It is not
possible (invalid) to write to this bit using the software.
Use the software to write to the USB request data value of the Setup transaction to be sent.
Use the software to write "SUREQ=1", but do not write the bit for the period until "SUREQ=0" is set by the controller.
The USB request data value received in the Setup transaction by the controller is set to this bit. It is not possible
(invalid) to write to this bit using the software.
14
0
0
O c t 1 7 , 2 0 0 8
13
0
0
Name
12
bRequest
0
0
p a g e 7 2 o f 1 8 3
11
0
0
10
0
0
USB request bRequest value
USB request bmRequest type value
9
0
0
8
0
0
Function
7
0
0
6
0
0
5
0
0
bmRequestType
When H:R/W
When H:R/W
4
0
0
When P:R
When P:R
Software
3
0
0
When P:W
When P:W
When H:R
When H:R
Hardware
2
0
0
<Address: 54H>
1
0
0
Remarks
0
0
0
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