HT45F4M View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT45F4M Datasheet PDF : 138 Pages
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HT45F4M
Lithium Battery Backup Power ASSP MCU
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.
Register
Reset
(Power On)
WDT Time-out
(Normal
Operation)
LVR Reset
WDT Time-out
(SLEEP/IDLE)
MP0
xxxx xxxx
xxxx xxxx
xxxx xxxx
uuuu uuuu
MP1
xxxx xxxx
xxxx xxxx
xxxx xxxx
uuuu uuuu
BP
---- ---0
---- ---0
---- ---0
---- ---u
ACC
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
PCL
0000 0000
0000 0000
0000 0000
0000 0000
TBLP
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
TBLH
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
TBHP
---- -xxx
- - - - - uuu
- - - - - uuu
- - - - - uuu
STATUS
--00 xxxx
- - 1 u uuuu
- - u u uuuu
- - 1 1 uuuu
SMOD
110- 0010
110- 0010
110- 0010
u uu - uuuu
LVDC
--00 -000
--00 -000
--00 -000
- - uu - uuu
INTEG
---- 0000
---- 0000
---- 0000
- - - - uuuu
INTC0
-000 0000
-000 0000
-000 0000
- uuu uuuu
INTC1
0000 0000
0000 0000
0000 0000
uuuu uuuu
INTC2
-000 -000
-000 -000
-000 -000
- uuu - uuu
MFI0
--00 --00
--00 --00
--00 --00
- - uu - - uu
MFI1
--00 --00
--00 --00
--00 --00
- - uu - - uu
MFI2
--00 --00
--00 --00
--00 --00
- - uu - - uu
PA
1111 1111
1111 1111
1111 1111
uuuu uuuu
PAC
1111 1111
1111 1111
1111 1111
uuuu uuuu
PAPU
0000 0000
0000 0000
0000 0000
uuuu uuuu
PAWU
0000 0000
0000 0000
0000 0000
uuuu uuuu
PB
1111 1111
1111 1111
1111 1111
uuuu uuuu
PBC
1111 1111
1111 1111
1111 1111
uuuu uuuu
PBPU
0000 0000
0000 0000
0000 0000
uuuu uuuu
TMPC
1100 0000
1100 0000
1100 0000
uuuu uuuu
WDTC
0101 0011
0101 0011
0101 0011
uuuu uuuu
TBC
0011 -111
0011 -111
0011 -111
uuuu - uuu
EEA
--00 0000
--00 0000
--00 0000
- - uu uuuu
EED
0000 0000
0000 0000
0000 0000
uuuu uuuu
EEC
---- 0000
---- 0000
---- 0000
- - - - uuuu
ADRL (ADRFS=0) x x x x - - - -
xxxx ----
xxxx ----
uuuu - - - -
ADRL (ADRFS=1) x x x x x x x x
xxxx xxxx
xxxx xxxx
uuuu uuuu
ADRH (ADRFS=0) x x x x x x x x
xxxx xxxx
xxxx xxxx
uuuu uuuu
ADRH (ADRFS=1) - - - - x x x x
---- xxxx
---- xxxx
- - - - uuuu
ADCR0
0110 0000
0110 0000
0110 0000
uuuu uuuu
ADCR1
00-0 -000
00-0 -000
00-0 -000
uu - u - uuu
Rev. 1.10
47
January 15, 2013
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