HT66F25D View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
MFG CO.
'HT66F25D' PDF : 177 Pages View PDF
A/D Flash Type 8-bit MCU with EEPROM
HT66F24D/HT66F25D
The different kinds of resets all affect the internal registers of the microcontroller in different ways.
To ensure reliable continuation of normal program execution after a reset occurs, it is important to
know what condition the microcontroller is in after a particular reset occurs. The following table
describes how each type of reset affects each of the microcontroller internal registers.
HT66F24D
Register
MP0
MP1
BP
ACC
PCL
TBLP
TBLH
TBHP
STATUS
SMOD
LVDC
LVRC
CTRL
INTEG
WDTC
TBC
INTC0
INTC1
INTC2
MFI0
MFI1
MFI2
PAWU
PAPU
PA
PAC
PBPU
PB
PBC
PCPU
PC
PCC
PRM0
TMPC0
ADRL
(ADRFS=0)
ADRL
(ADRFS=1)
ADRH
(ADRFS=0)
ADRH
(ADRFS=1)
ADCR0
Power On Reset
xxxx xxxx
xxxx xxxx
---- ---0
xxxx xxxx
0000 0000
xxxx xxxx
xxxx xxxx
---- -xxx
--00 xxxx
0000 0011
--00 -000
0101 0101
0--- -x00
---- 0000
0101 0011
0011 0111
-000 0000
0000 0000
---0 ---0
--00 --00
--00 --00
--00 --00
0000 0000
0000 0000
1111 1111
1111 1111
--00 0000
--11 1111
--11 1111
0000 0000
1111 1111
1111 1111
0000 ----
--00 0000
xxxx ----
xxxx xxxx
xxxx xxxx
---- xxxx
0110 -000
LVR Reset
xxxx xxxx
xxxx xxxx
---- ---0
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0000 0000
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---- -uuu
--uu uuuu
0000 0011
--00 -000
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0--- -100
---- 0000
0101 0011
0011 0111
-000 0000
0000 0000
---0 ---0
--00 --00
--00 --00
--00 --00
0000 0000
0000 0000
1111 1111
1111 1111
--00 0000
--11 1111
--11 1111
0000 0000
1111 1111
1111 1111
0000 ----
--00 0000
xxxx ----
xxxx xxxx
xxxx xxxx
---- xxxx
0110 -000
WDT Time-out
(Normal Operation)
xxxx xxxx
xxxx xxxx
---- ---0
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0000 0000
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---- -uuu
--1u uuuu
0000 0011
--00 -000
0101 0101
0--- -000
---- 0000
0101 0011
0011 0111
-000 0000
0000 0000
---0 ---0
--00 --00
--00 --00
--00 --00
0000 0000
0000 0000
1111 1111
1111 1111
--00 0000
--11 1111
--11 1111
0000 0000
1111 1111
1111 1111
0000 ----
--00 0000
xxxx ----
WDT Time-out
(IDLE)
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---- ---u
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0000 0000
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uuuu uuuu
---- -uuu
--11 uuuu
uuuu uuuu
--uu -uuu
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u--- -uuu
---- uuuu
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---u ---u
--uu --uu
--uu --uu
--uu --uu
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uuuu ----
--uu uuuu
uuuu ----
xxxx xxxx
uuuu uuuu
xxxx xxxx
uuuu uuuu
---- xxxx
0110 -000
---- uuuu
uuuu -uuu
Rev. 1.10
56
March 25, 2013
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