HT46RU25/HT46CU25
Reset
WDT Time-out
RES Reset
RES Reset
(HALT)
WDT Time-out
(HALT)*
Register
PF
(Power On)
(Normal Operation) (Normal Operation)
1111 1111
1111 1111
1111 1111
1111 1111
xxxx xxxx
00-0 1000
-000 -000
0000 1011
0000 00x0
0000 0000
xxxx xxxx
xxxx xxxx
1111 1111
1111 1111
1111 1111
1111 1111
xxxx xxxx
00-0 1000
-000 -000
0000 1011
0000 00x0
0000 0000
xxxx xxxx
xxxx xxxx
1111 1111
1111 1111
1111 1111
1111 1111
xxxx xxxx
00-0 1000
-000 -000
0000 1011
0000 00x0
0000 0000
xxxx xxxx
xxxx xxxx
1111 1111
1111 1111
1111 1111
1111 1111
xxxx xxxx
00-0 1000
-000 -000
0000 1011
0000 00x0
0000 0000
xxxx xxxx
xxxx xxxx
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uu-u uuuu
-uuu -uuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu xxxx
PFC
PG
PGC
TMR2
TMR2C
MFIC
USR
UCR1
UCR2
TXR/RXR
BRG
Note:
²*² stands for warm reset
²u² stands for unchanged
²x² stands for unknown
P
W
M
(
6
+
2
)
o
r
(
7
+
1
)
T
o
P
D
0
/
P
D
1
/
P
D
2
/
P
D
3
C
i
r
c
u
i
t
C
o
m
p
a
r
e
D
a
t
a
B
u
s
f
S Y S
8
-
s
t
a
g
e
P
r
e
s
c
a
l
e
r
L
o
w
B
y
t
e
f
I N T
B
u
f
f
e
r
8
-
1
M
U
X
T
0
M
1
T
0
M
0
T
0
P
S
C
2
~
T
0
P
S
C
0
T
M
R
0
1
6
-
B
i
t
R
e
l
o
a
d
P
r
e
l
o
a
d
R
e
g
i
s
t
e
r
T
0
E
P
u
l
s
e
W
i
n
d
t
h
O
v
e
r
f
l
o
w
t
o
I
n
t
e
r
r
u
p
t
H
i
g
h
B
y
t
e
L
o
w
B
y
t
e
T
0
M
1
M
e
a
s
u
r
e
m
e
n
t
T
0
M
0
M
o
d
e
C
o
t
r
o
l
1
6
-
B
i
t
T
i
m
e
r
/
E
v
e
n
t
C
o
u
n
t
e
r
T
0
O
N
P
F
D
0
Timer/Event Counter 0
D
a
t
a
B
u
s
L
o
w
B
y
t
e
f
I N T
B
u
f
f
e
r
S
Y
S
T
1
M
1
T
1
M
0
T
M
R
1
1
6
-
B
i
t
R
e
l
o
a
d
P
r
e
l
o
a
d
R
e
g
i
s
t
e
r
T
1
E
P
u
l
s
e
W
i
d
t
h
T
1
M
1
O
v
e
r
f
l
o
w
t
o
I
n
t
e
r
r
u
p
t
H
i
g
h
B
y
t
e
L
o
w
B
y
t
e
M
e
a
s
u
r
e
m
e
n
t
T
1
M
0
M
o
d
e
C
o
n
t
r
o
l
T
1
O
N
1
6
-
B
i
t
T
i
m
e
r
/
E
v
e
n
t
C
o
u
n
t
e
r
P
F
D
1
Timer/Event Counter 1
Rev. 1.30
18
March 9, 2007
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
