ht82m75r Holtek Semiconductor Inc., ht82m75r Datasheet - Page 26

• Manufacturer Part Number: ht82m75r
• Description: I/o Type 8-bit Otp Mcu
• Manufacturer: Holtek Semiconductor Inc.

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.
Note:
Rev. 1.10
PCC
PD **
PDC **
PE **
PEC **
WDTS
MP0
MP1
CTLR
PTR
TBHP
SPIR
SBCR
SBDR
PCL
ACC
TBLP
TBLH
STATUS
INTC
TMRL
TMRH
TMRC
PA
PAC
PB
PBC
PC
Register
** For the HT82K75R only
- not implemented
u means unchanged
x means unknown
(Power-on)
0000 0000
0110 0000
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
0100 0x00
0000 0000
-000 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
----- 0000
xxxx xxxx
-xxx xxxx
--00 xxxx
00-0 1----
---- -111
Reset
000H
(Normal Operation)
WDT time-out
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
uuuu uuuu
0000 0000
0000 0000
0110 0000
uuuu uuuu
uuuu uuuu
1111 1111
1111 1111
0100 0x00
-uuu uuuu
-000 0000
xxxx xxxx
--1u uuuu
xxxx xxxx
xxxx xxxx
00-0 1----
----- 0000
---- -111
000H
26
(Normal Operation)
RES Reset
uuuu uuuu
uuuu uuuu
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
uuuu uuuu
0100 0x00
0000 0000
0000 0000
0110 0000
-uuu uuuu
-000 0000
--uu uuuu
xxxx xxxx
xxxx xxxx
xxxx xxxx
00-0 1----
----- 0000
---- -111
000H
HT82M75R/HT82M75RE
HT82K75R/HT82K75RE
RES Reset
uuuu uuuu
uuuu uuuu
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
uuuu uuuu
0100 0x00
0000 0000
0000 0000
0110 0000
-uuu uuuu
-000 0000
--01 uuuu
xxxx xxxx
xxxx xxxx
xxxx xxxx
00-0 1----
----- 0000
---- -111
(HALT)
000H
WDT Time-out
June 11, 2010
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uxuu
uuuu uuuu
0000 uuuu
0000 uuuu
uuuu uuuu
uuuu uuuu
-uuu uuuu
-uuu uuuu
--11 uuuu
uu-u u---
(HALT)*
---- -uuu
000H