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&degC to 70°C; Package: 8-EPSOIC
中文描述: 微控制器
文件頁數(shù): 35/69頁
文件大?。?/td> 852K
代理商: EM6821TQ52B
EM6821
10/01, Revision A/386
Copyright
2001, EM Microelectronic-Marin SA
40
www.emmicroelectronic.com
9.5 Millisecond Counter Registers
Table 9.5.1 Register RegMSCCntl1
Bit
Name
Reset
R/W
Description
3
RunEn/Stop
0
R/W
Enable counter
2
PA3/P
0
R/W
Port A or CPU start stop control
1
dT/MSC
0
R/W
Pulse-width measurement
0
ResMSC
0
R/W
Reset if write of 1
Read value is always 0
Default: Stop, CPU controlled.
Table 9.5.2 Register RegMSCCntl2
Bit
Name
Reset
R/W
Description
3
DebFreqSel
0
R/W
Debouncer frequency select
2
PA3Edge
0
R/W
PA[3] edge selection
1
IntSel
0
R/W
Interrupt source selection
0
FlSec
0
R
Seconds flag
Default: Ck[14] is debouncer clock, negative edge, 1/10 Sec Interrupt requests
Table 9.5.3 Register RegMSCDataL
Bit
Name
Reset
R/W
Description
3
BCD[3]
0
R
1/1000 Seconds BCD value 3
2
BCD[2]
0
R
1/1000 Seconds BCD value 2
1
BCD[1]
0
R
1/1000 Seconds BCD value 1
0
BCD[0]
0
R
1/1000 Seconds BCD value 0
Table 9.5.4 Register RegMSCDataM
Bit
Name
Reset
R/W
Description
3
BCD[7]
0
R
1/100 Seconds BCD value 3
2
BCD[6]
0
R
1/100 Seconds BCD value 2
1
BCD[5]
0
R
1/100 Seconds BCD value 1
0
BCD[4]
0
R
1/100 Seconds BCD value 0
Table 9.5.5 Register RegMSCDataH
Bit
Name
Reset
R/W
Description
3
BCD[11]
0
R
1/10 Seconds BCD value 3
2
BCD[10]
0
R
1/10 Seconds BCD value 2
1
BCD[9]
0
R
1/10 Seconds BCD value 1
0
BCD[8]
0
R
1/10 Seconds BCD value 0
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