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參數(shù)資料
| 型號： | EM78612 |
| 英文描述： | Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 16-QFN |
| 中文描述： | USB控制器 |
| 文件頁數(shù)： | 9/29頁 |
| 文件大小： | 692K |
| 代理商： | EM78612 |
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EM78612
Universal Serial Bus Microcontroller Series
This specification may change without further notice.
17
3/5/2003 (V1.0)
IOCB (Port 6 Pull-Low Control Register)
Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
PL67
PL66
PL65
PL64
PL63
PL62
PL61
PL60
IOCB [0~7]
Select whether the 15K Ohm pull-low resistor of Port 6 individual pin is
connected or not.
1: Enable the pull-low function.
0: Disable the pull-low function.
IOCC (Port 6 Pull-High Control Register)
Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
PH67
PH66
PH65
PH64
PH63
PH62
PH61
PH60
IOCC [0~7]
Select whether the 200K Ohm pull-high resistor of Port 6 individual pin is
connected or not.
1: Enable the pull-high function.
0: Disable the pull-high function.
IOCD (Port 7 Pull-High Control Register)
Default Value: (0B_0000_0000)
7
6
5
4
3
2
1
0
-
PH73
PH72
PH71
PH70
IOCD [0~3]
Select whether the 200K Ohm pull-high resistor of Port 7 individual pin is
connected or not.
1: Enable the pull-high function.
0: Disable the pull-high function.
IOCE (Special Function Control Register)
Default Value: (0B_1111_0000)
7
6
5
4
3
2
1
0
/Dual clock
/WUE
WTE
RUN
0
Op_Fre.1
Op_Fre.0
IOCE [0,1]
Operation frequency control bit. The external crystal frequency (6MHz or
12MHz) can be divided by 1, 2, or 4, which can be programmed through these
two bits for running the MCU program.
F.1
F.0
Base Operation Freq. Divided by
0
1
0
1
2
1
0
3
1
4
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