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参数资料
| 型号： | EM78459 |
| 英文描述： | Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 14-SOIC |
| 中文描述： | 8位微控制器的通用产品 |
| 文件页数： | 7/57页 |
| 文件大小： | 854K |
| 代理商： | EM78459 |
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EM78458/459
MASK ROM
This specification is subject to change without prior notice.
2002/03/01
15
Bit 5 (/PD5) Control bit is used to enable the pull-down of the P65 pin.
Bit 6 (/PD6) Control bit is used to enable the pull-down of the P66 pin.
Bit 7 (/PD7) Control bit is used to enable the pull-down of the P67 pin.
IOCB0 register is both readable and writable.
7. IOCC0 (Open-Drain Control Register)
7
6
5
4
3
2
1
0
/OD7
/OD6
/OD5
/OD4
/OD3
/OD2
/OD1
/OD0
Bit 0 (OD0) Control bit used to enable the open-drain of the P64 pin.
0: Enable open-drain output
1: Disable open-drain output
Bit 1 (OD1) Control bit is used to enable the open-drain of the P65 pin.
Bit 2 (OD2) Control bit is used to enable the open-drain of the P66 pin.
Bit 3 (OD3) Control bit is used to enable the open-drain of the P67 pin.
Bit 4 (OD4) Control bit is used to enable the open-drain of the P51 pin.
Bit 5 (OD5) Control bit is used to enable the open-drain of the P52 pin.
Bit 6 (OD6) Control bit is used to enable the open-drain of the P54 pin.
Bit 7 (OD7) Control bit is used to enable the open-drain of the P57 pin.
IOCC0 register is both readable and writable.
8. IOCD0 (Pull-high Control Register)
7
6
5
4
3
2
1
0
/PH7
/PH6
/PH5
-
/PH3
/PH2
/PH1
/PH0
Bit 0 (/PH0) Control bit is used to enable the pull-high of the P60 pin.
0: Enable internal pull-high;
1: Disable internal pull-high.
Bit 1 (/PH1) Control bit is used to enable the pull-high of the P61 pin.
Bit 2 (/PH2) Control bit is used to enable the pull-high of the P62 pin.
Bit 3 (/PH3) Control bit is used to enable the pull-high of the P63 pin.
Bit 4 Not used.
Bit 5 (/PH5) Control bit is used to enable the pull-high of the P53 pin.
Bit 6 (/PH6) Control bit is used to enable the pull-high of the P55 pin.
Bit 7 (/PH7) Control bit is used to enable the pull-high of the P56 pin.
IOCD0 register is both readable and writable.
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