HT45F4M View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT45F4M Datasheet PDF : 138 Pages
| |||
HT45F4M
Lithium Battery Backup Power ASSP MCU
CTRL Register
Bit
7
6
5
4
3
2
1
0
Name FSYSON —
—
—
—
LVRF
LRF
WRF
R/W
R/W
—
—
—
—
R/W
R/W
R/W
POR
0
—
—
—
—
×
0
0
Bit 7
Bit 6~3
Bit 2
Bit 1
Bit 0
FSYSON: fSYS Control in IDLE Mode
0: disable
1: enable
Unimplemented, read as 0.
LVRF: LVR function reset flag
0: not occur
1: occurred
This bit is set to 1 when a specific Low Voltage Reset situation condition occurs. This
bit can only be cleared to 0 by the application program.
LRF: LVR Control register software reset flag
0: not occur
1: occurred
This bit is set to 1 if the LVRC register contains any non defined LVR voltage register
values. This in effect acts like a software reset function. This bit can only be cleared to
0 by the application program.
WRF: WDT Control register software reset flag
0: not occur
1: occurred
This bit is set to 1 by the WDT Control register software reset and cleared by the
application program. Note that this bit can only be cleared to 0 by the application
program.
NORM AL
fS Y S = fH ~ fH /6 4
fH o n
C P U ru n
fS Y S o n
fT B C o n
fS U B o n
ID L E 1
H A L T in s tr u c tio n is e x e c u te d
C P U s to p
ID L E N = 1
FSYSO N =1
fS Y S o n
fT B C o n
fS U B o n
SLEEP
H A L T in s tr u c tio n is e x e c u te d
fS Y S o ff
C P U s to p
ID L E N = 0
fT B C o ff
fS U B o n
SLO W
fS Y S = fL
fL o n
C P U ru n
fS Y S o n
fT B C o n
fS U B o n
fH o ff
Rev. 1.10
36
ID L E 0
H A L T in s tr u c tio n is e x e c u te d
C P U s to p
ID L E N = 1
FSYSO N =0
fS Y S o ff
fT B C o n
fS U B o n
January 15, 2013
|
|
Share Link: 