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參數(shù)資料
| 型號： | EM6821TQ52B |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-EPSOIC |
| 中文描述： | 微控制器 |
| 文件頁數(shù)： | 50/69頁 |
| 文件大?。?/td> | 852K |
| 代理商： | EM6821TQ52B |
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EM6821
10/01, Revision A/386
Copyright
2001, EM Microelectronic-Marin SA
54
www.emmicroelectronic.com
16. Option Register Memory Map
The values of the option registers are set by initial reset on power up and through write operations only.
Other resets ; as reset from watchdog, reset from input port A, reset from pin RESET, etc. do not change the
options register value.
Register
Name
Add
Hex
Add
Dec.
Reset
Value
Read Bits
Write Bits
Remarks
b'3210
Read / Write Bits
OPTDebIntPA
OPT[3:0]
75
117
0000
0: NoDebIntPA[0]
1: NoDebIntPA[1]
2: NoDebIntPA[2]
3: NoDebIntPA[3]
Debouncer on port A
for interrupt gen.
Default: debouncer on
OPTIntEdgPA
OPT[7:4]
76
118
0000
0: IntEdgPA[0]
1: IntEdgPA[1]
2: IntEdgPA[2]
3: IntEdgPA[3]
Interrupt edge select on
port A.
Default: pos. edge
OPTNoPullPA
OPT[11:8]
77
119
0000
0: NoPullPA[0]
1: NoPullPA[1]
2: NoPullPA[2]
3: NoPullPA[3]
Pull-down selection on
port A
Default: pull-down
OPTNoPdPB
OPT[15:12]
78
120
0000
0: NoPdPB[0]
1: NoPdPB[1]
2: NoPdPB[2]
3: NoPdPB[3]
Pull-down selection on
port B
Default: pull-down
OPTNchOpDPB
OPT[19:16]
79
121
0000
0: NchOpDPB[0]
1: NchOpDPB[1]
2: NchOpDPB[2]
3: NchOpDPB[3]
Nch. open drain
output on port B
Default: CMOS output
OPTNchOpDPS
OPT[23:20]
7A
122
0000
0: NchOpDPS[0]
1: NchOpDPS[1]
2: NchOpDPS[2]
3: NchOpDPS[3]
Nch. open drain
output on port serial
Default: CMOS output
OPTFSelPB
OPT[31:28]
7B
123
0000
0: PB1HzOut
1: PB1kHzOut
2: PB32kHzOut
3: InpResSleep
Frequency output on
port B, reset from sleep
mode with port A
OPTInpRSel1
7C
124
0000
0: InpRes1PA[0]
1: InpRes1PA[1]
2: InpRes1PA[2]
3: InpRes1PA[3]
Reset through port A
inputs selection.
Refer to reset part
OPTInpRSel2
7D
125
0000
0: InpRes2PA[0]
1: InpRes2PA[1]
2: InpRes2PA[2]
3: InpRes2PA[3]
Reset through port A
inputs selection.
Refer to reset part
OPTNoPdPS
OPT[35:32]
7E
126
0000
0: NoPdPS[0]
1: NoPdPS[1]
2: NoPdPS[2]
3: NoPdPS[3]
No Pull-down on port SP
Default: pull-down
RegTestEM
7F
127
----
for EM test only;
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