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: 37/128页
文件大小: 928K
代理商: M66291GP
M66291GP/HP
Rev 1.01 2004.11.01 page 14 of 122
2.2 Remote Wakeup Register
Remote Wakeup Register (REMOTE_WAKEUP)
<Address : H’02>
b15
14
13
12
11
10
9876
54321
b0
WKUP
0
00
-
<H/W reset : H'0000>
<S/W reset : H'0000>
<USB bus reset : ->
b
Bit name
Function
R
W
15~1
Reserved. Set it to “0”.
00
0WKUP
Remote Wakeup
Read
0 :
Do not output the remote wakeup signal
1 :
Output the remote wakeup signal
Write
0 :
Invalid (Ignored when written)
1 :
Output the remote wakeup signal
(1) WKUP (Remote Wakeup) Bit (b0)
This bit controls the output of the remote wakeup signal (K state output).
This bit is valid only when the device state is “suspend” (DVSQ bits = “1xx”). The writing of “1” to this bit is
ignored when the device state is not suspend.
When “1” is written to this bit, the K state is output for 10 ms. The bit is automatically cleared to “0” after K
state output.
The bus idle state continues (this WKUP bit = “1”) for 2 ms after the Suspend state is detected when “1” is
written to this bit before outputting the K state for 10 ms.
The 2 ms and 10 ms time intervals are counted using a clock. Make sure that the counting stops if the clock is
not supplied (Note).
Note :
SCKE bit = “0” when XCKE bit = “1 ”, or XCKE bit = “0”.
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