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P u l l - u p c o n t r o l r e g i s t e r 0 ( N o t e )
b 7
b 6
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P u l l - u p c o n t r o l r e g i s t e r 1
b 7
b 6
P u l l - u p c o n t r o l r e g i s t e r 2
b 7
b 6
b 5
Figure 2.17.5. Programmable I/O ports-related registers (4)
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
b 5
b 4
b 3
b 2
b 1
b 0
S y m b o l
P U R 0
B i t s y m b o l
P U 0 0
P U 0 1
P U 0 2
P U 0 3
P U 0 4
P U 0 5
P U 0 6
P U 0 7
N o t e : I n m e m o r y e x p a n s i o n a n d m i c r o p r o c e s s o r m o d e , t h e c o n t e n t o f t h i s r e g i s t e r
c a n b e c h a n g e d , b u t t h e p u l l - u p r e s i s t a n c e i s n o t c o n n e c t e d .
b 5
b 4
b 3
b 2
b 1
b 0
S y m b o l
P U R 1
B i t s y m b o l
P U 1 0
P U 1 1
P U 1 2
P U 1 3
P U 1 4
P U 1 5
P U 1 6
P U 1 7
N o t e 1 : S i n c e P 7
N o t e 2 : T h i s r e g i s t e r b e c o m e s 0 2
a ) H a r d w a r e r e s e t : w h e n V
b ) S o f t w a r e r e s e t : i f b i t 1 a n d b i t 0 o f p r o c e s s o r m o d e r e g i s t e r 0 ( a d d r e s s 0 0 0 4
N o t e 3 : I n m e m o r y e x p a n s i o n a n d m i c r o p r o c e s s o r m o d e , t h e c o n t e n t o f t h e s e b i t s c a n b e
c h a n g e d , b u t t h e p u l l - u p r e s i s t a n c e i s n o t c o n n e c t e d .
b 4
b 3
b 2
b 1
b 0
S y m b o l
P U R 2
B i t s y m b o l
P U 2 0
P U 2 1
P U 2 2
N o t h i n g i s a s s i g n e d .
I n a n a t t e m p t t o w r i t e t o t hi s b i t , w r i t e " 0 " . T h e v a l u e , i f r e a d , t u r n s o u t t o b e " 0 " .
P U 2 4
P U 2 5
N o t h i n g i s a s s i g n e d .
I n a n a t t e m p t t o w r i t e t o t h e s e b i t s , w r i t e " 0 " . T h e v a l u e , i f r e a d , t u r n s o u t t o b e " 0 " .
page 291 of 354
A d d r e s s
0 3 F C
1 6
B i t n a m e
P 0
t o P 0
p u l l - u p
0
3
P 0
t o P 0
p u l l - u p
4
7
P 1
t o P 1
p u l l - u p
0
3
P 1
t o P 1
p u l l - u p
4
7
P 2
t o P 2
p u l l - u p
0
3
P 2
t o P 2
p u l l - u p
4
7
P 3
t o P 3
p u l l - u p
0
3
P 3
t o P 3
p u l l - u p
4
7
A d d r e s s
0 3 F D
1 6
B i t n a m e
P 4
t o P 4
p u l l - u p ( N o t e 3 )
0
3
P 4
t o P 4
p u l l - u p
4
7
P 5
t o P 5
p u l l - u p ( N o t e 3 )
0
3
P 5
t o P 5
p u l l - u p
4
7
P 6
t o P 6
p u l l - u p
0
3
P 6
t o P 6
p u l l - u p
4
7
P 7
t o P 7
p u l l - u p ( N o t e 1 )
2
3
P 7
t o P 7
p u l l - u p
4
7
a n d P 7
a r e N - c h a n n e l o p e n d r a i n p o r t s , p u l l - u p i s n o t a v a i l a b l e f o r t h e m .
0
1
w h e n r e s e t u n d e r t h e f o l l o w i n g c o n d i t i o n s :
1 6
i s a p p l i e d t o t h e C N V
C C
[ 1 0
] o r [ 1 1
] b e f o r e r e s e t .
2
2
A d d r e s s
0 3 F E
1 6
B i t n a m e
P 8
t o P 8
p u l l - u p
0
3
P 8
t o P 8
p u l l - u p
4
7
( E x c e p t P 8
)
5
P 9
t o P 9
p u l l - u p
0
3
P 1 0
t o P 1 0
p u l l - u p
0
3
P 1 0
t o P 1 0
p u l l - u p
4
7
2. Programmable I/O Ports
W h e n r e s e t
0 0
1 6
F u n c t i o n
T h e c o r r e s p o n d i n g p o r t i s p u l l e d
h i g h w i t h a p u l l - u p r e s i s t o r
0 : N o t p u l l e d h i g h
1 : P u l l e d h i g h
W h e n r e s e t
0 0
( N o t e 2 )
1 6
F u n c t i o n
T h e c o r r e s p o n d i n g p o r t i s p u l l e d
h i g h w i t h a p u l l - u p r e s i s t o r
0 : N o t p u l l e d h i g h
1 : P u l l e d h i g h
p i n .
S S
W h e n r e s e t
0 0
1 6
F u n c t i o n
T h e c o r r e s p o n d i n g p o r t i s p u l l e d
h i g h w i t h a p u l l - u p r e s i s t o r
0 : N o t p u l l e d h i g h
1 : P u l l e d h i g h
T h e c o r r e s p o n d i n g p o r t i s p u l l e d
h i g h w i t h a p u l l - u p r e s i s t o r
0 : N o t p u l l e d h i g h
1 : P u l l e d h i g h
R
W
R
W
)
1 6
R
W
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