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HT49C50 Datasheet(PDF) 21 Page - Holtek Semiconductor Inc

Part # HT49C50
Description  8-Bit Microcontroller
PDF  52 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT49C50 Datasheet(HTML) 21 Page - Holtek Semiconductor Inc

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HT49C50
21
August 18, 1999
The states of the registers are summarized below:
Register
Reset
(Power On)
WDT
Time-out
(Normal
Operation)
RES Reset
(Normal
Operation)
RES Reset
(HALT)
WDT
Time-out
(HALT)*
TMR0
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
TMR0C
0000 1---
0000 1---
0000 1---
0000 1---
uuuu u---
TMR1
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
TMR1C
0000 1---
0000 1---
0000 1---
0000 1---
uuuu u---
Program Counter 000H
000H
000H
000H
000H
MP0
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
MP1
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
ACC
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
TBLP
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
TBLH
-xxx xxxx
-uuu uuuu
-uuu uuuu
-uuu uuuu
-uuu uuuu
STATUS
--00 xxxx
--1u uuuu
--uu uuuu
--01 uuuu
--11 uuuu
INTC0
-000 0000
-000 0000
-000 0000
-000 0000
-uuu uuuu
INTC1
-000 -000
-000 -000
-000 -000
-000 -000
-uuu -uuu
RTCC
--00 0111
--00 0111
--00 0111
--00 0111
--uu uuuu
PA
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
PB
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
PC
---- 1111
---- 1111
---- 1111
---- 1111
---- uuuu
Notes: ²*² refers to warm reset
²u² means unchanged
²x² means unknown



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