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EM6812F2TP24B 数据表(PDF) 39 Page - EM Microelectronic - MARIN SA

部件名 EM6812F2TP24B
功能描述  Ultra Low Power 8-bit FLASH Microcontroller
PDF  81 Pages
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制造商  EMMICRO [EM Microelectronic - MARIN SA]
网页  http://www.emmicroelectronic.com
标志 EMMICRO - EM Microelectronic - MARIN SA

EM6812F2TP24B 数据表(HTML) 39 Page - EM Microelectronic - MARIN SA

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EM6812
Copyright
© 2005, EM Microelectronic-Marin SA
39
www.emmicroelectronic.com
10.3
Reset and Wake-up
Port A has an input comparison register to detect an incoming reset and/or wakeup condition. On a compare match with the
defined key pattern, the selected functionality will be activated. When working on all PA inputs, only reset or wake-up
function is active. With the PA input split in 2 time’s 4-pin input, the reset and wake-up functions can be used
simultaneously. In this case, the upper 4 bits are attached to the reset and the lower to the wake-up. The ‘don’t care’
condition allows masking specific inputs so their state is not taken into account.
The reset and the wake-up signal can be individually debounced. The input reset function can be disabled with bit
DisResInp
in register RegSys1 (Reset section).
Table 35. Port A Reset and wake-up selection
Wk_nRes
SplitCmb
Description
X
1
PAIn[7:4] used for reset function.
PAIn[3:0] used for the wake up function.
0
0
PAIn[7:0] is used as reset function. (default)
1
0
PAIn[7:0] is used as wake-up function.
Figure 22; Reset and Wake-up diagram
DebResInpPA
MskRstWkUp(4)
PAIn(4)
CmbKey(4)
Comp
&
mask
match(4)
MskRstWkUp(5)
PAIn(5)
CmbKey(5)
Comp
&
mask
match(5)
MskRstWkUp(6)
PAIn(6)
CmbKey(6)
Comp
&
mask
match(6)
MskRstWkUp(3)
PAIn(3)
CmbKey(3)
Comp
&
mask
match(3)
MskRstWkUp(7)
PAIn(7)
CmbKey(7)
Comp
&
mask
match(7)
MskRstWkUp(1)
PAIn(1)
CmbKey(1)
Comp
&
mask
match(1)
MskRstWkUp(2)
PAIn(2)
CmbKey(2)
Comp
&
mask
match(2)
MskRstWkUp(0)
PAIn(0)
CmbKey(0)
match(0)
Excl_nComb
SplitCmb
Wk_nRes
MskRstWkUp
PAIn
CmbKey
match
Excl_nComb
Comp
&
mask
MskRstWkUp(0)
MskRstWkUp(1)
MskRstWkUp(2)
MskRstWkUp(3)
MskRstWkUp(4)
MskRstWkUp(5)
MskRstWkUp(6)
MskRstWkUp(7)
SplitCmb
1
0
1
0
1
0
0
1
0
1
ResSys
1
0
8kHz
256Hz
Debouncer
R
CkDebResInp
EnDe
bResInp
0
1
ResSys
1
0
Debouncer
R
DebWakeUp
CkDebWk
EnDe
bWk
8kHz
256Hz
ResInpPA
WakeUp



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