参数资料
型号: M66291GP
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
封装: 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 59/126页
文件大小: 893K
代理商: M66291GP
M66291GP/HP
Rev 1.01 2004.11.01 page 38 of 122
2.16 Request Register
Request Register (REQUEST_TYPE)
<Address : H’20>
b15
14
13
12
11
10
9876
54321
b0
bRequest
bmRequestType
0000
000000
0
00000
0000
000000
0
00000
----
------
<H/W reset : H'0000>
<S/W reset : H'0000>
<USB bus reset : ->
b
Bit name
Function
R
W
15~8
bRequest
Request
Read
Request received in the setup stage
Write
Invalid (Ignored when written)
×
7~0
bmRequestType
Request Type
Read
Request type received in the setup stage
Write
Invalid (Ignored when written)
×
(1) bRequest (Request) Bits (b15~b8)
These bits store the bRequest of the device request received in the setup stage of the control transfer.
(2) bmRequestType (Request Type) Bits (b7~b0)
These bits store the bmRequestType of the device request received in the setup stage of the control transfer.
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