ht827a0 Holtek Semiconductor Inc., ht827a0 Datasheet - Page 18

• Manufacturer Part Number: ht827a0
• Description: 8-bit Microcontroller With Voice Rom
• Manufacturer: Holtek Semiconductor Inc.

The states of the registers are summarized in the following table:
Note: ²*² means ²warm reset²
Register
TMRH
TMRL
TMRC
PC
MP
ACC
TBLP
TBLH
STATUS
INTC
WDTS
PA
PAC
PB
PBC
PC
PCC
PD
PDC
PE
PEC
DAL
DAH
VCR
SRC
BEAT
TEMPO
TONE
²u² means ²unchanged²
²x² means ²unknown²
(Power On)
xxxx xxxx
xxxx xxxx
00-0 1---
0000H
xxxx xxxx
xxxx xxxx
xxxx xxxx
--00 xxxx
-000 0000
0000 0111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
---- 1111
---- 1111
0000 ----
0000 0000
0000 ----
--xx xxxx
xxxx xxxx
00-- xxxx
0-xx xxxx
xxxx xxxx
Reset
WDT Time-out
uuuu uuuu
uuuu uuuu
00-0 1---
0000H
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--1u uuuu
-000 0000
0000 0111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
---- 1111
---- 1111
0000 ----
0000 0000
0000 ----
--uu uuuu
uuuu uuuu
00-- uuuu
0-uu uuuu
Operation)
(Normal
18
uuuu uuuu
uuuu uuuu
00-0 1---
0000H
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
-000 0000
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
---- 1111
---- 1111
0000 ----
0000 0000
0000 ----
--uu uuuu
uuuu uuuu
00-- uuuu
0-uu uuuu
Operation)
0000 0111
RES Reset
(Normal
uuuu uuuu
uuuu uuuu
00-0 1---
0000H
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--01 uuuu
-000 0000
0000 0111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
---- 1111
---- 1111
0000 ----
0000 0000
0000 ----
--uu uuuu
uuuu uuuu
00-- uuuu
0-uu uuuu
RES Reset
(HALT)
uuuu uuuu
uuuu uuuu
uu-u u---
0000H
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--11 uuuu
-uuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
---- uuuu
---- uuuu
0000 ----
0000 0000
0000 ----
--uu uuuu
uuuu uuuu
00-- uuuu
0-uu uuuu
uuuu uuuu
Time-out
March 15, 2000
(HALT)*
HT827A0
WDT