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HT95C40P 데이터시트(PDF) 19 Page - Holtek Semiconductor Inc

부품명 HT95C40P
상세설명  CID Type Phone 8-Bit MCU
PDF  51 Pages
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제조업체  HOLTEK [Holtek Semiconductor Inc]
홈페이지  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT95C40P 데이터시트(HTML) 19 Page - Holtek Semiconductor Inc

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HT95CXXX
Rev. 1.50
19
May 26, 2005
By examining the processor status flags PDF and TO,
the software program can distinguish between the dif-
ferent
²chip resets².
TO
PDF
Reset Condition
0
0
Power on reset
uu
External reset during Normal mode or
Green mode
01
External reset during Sleep mode or
Idle mode
1u
WDT time-out during Normal mode or
Green mode
11
WDT time-out during Sleep mode or
Idle mode
Note:
²u² means ²unchanged²
The functional units chip reset status are shown below:
Program Counter
000H
Interrupt
Disabled
Prescaler
Cleared
WDT
Cleared
After a master reset,
WDT begins counting.
(If WDT function is enabled
by mask option)
Timer/Event Counter 0/1 Off
Input/output Port
Input mode
Stack Pointer
Points to the top of the stack
W a r m R e s e t
W D T
C o l d R e s e t
H A L T
S Y S C L K
S S T
1 0 - b i t R i p p l e
C o u n t e r
W D T T i m e - o u t
E x t e r n a l R E S
S y s t e m R e s e t
Reset Configuration
t S S T
R E S
V D D
S S T T i m e - o u t
C h i p R e s e t
Reset Timing Chart
When the reset conditions occurred, some registers may be changed or unchanged. (HT95C400/40P)
Register
Addr.
Reset Conditions
Power On
RES Pin
RES Pin
(Sleep/Idle)
WDT
WDT
(Sleep/Idle)
IAR0
00H
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
MP0
01H
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
IAR1
02H
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
MP1
03H
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
BP
04H
---0 0000
---0 0000
---0 0000
---0 0000
---u uuuu
ACC
05H
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
PCL
06H
0000H
0000H
0000H
0000H
0000H
TBLP
07H
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
TBLH
08H
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
WDTS
09H
0000 0111
0000 0111
0000 0111
0000 0111
uuuu uuuu
STATUS
0AH
--00 xxxx
--uu uuuu
--01 uuuu
--1u uuuu
--11 uuuu
INTC0
0BH
-000 0000
-000 0000
-000 0000
-000 0000
uuuu uuuu
TMR0H
0CH
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
uuuu uuuu
TMR0L
0DH
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
uuuu uuuu
TMR0C
0EH
00-0 1---
00-0 1---
00-0 1---
00-0 1---
uu-u u---
TMR1H
0FH
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
uuuu uuuu
TMR1L
10H
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
uuuu uuuu
TMR1C
11H
00-0 1---
00-0 1---
00-0 1---
00-0 1---
uu-u u---



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