參數(shù)資料
型號: M66291GP
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
封裝: LQFP-48
文件頁數(shù): 35/126頁
文件大?。?/td> 810K
代理商: M66291GP
MITSUBISHI <DIGITAL ASSP>
M66291GP
2. Registers
USB -12
Ver.1.0 Apr.9 2001
2.2 Remote Wakeup Register
s
Remote Wakeup Register (REMOTE_WAKEUP)
<Address : H’02>
b15
14
13
12
11
10
9876543
21
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
s
Read
0 :
Do not output the remote wakeup signal
1 :
Output the remote wakeup signal
s
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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