M306V2 Mitsubishi, M306V2 Datasheet - Page 272

• Manufacturer Part Number: M306V2
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
• Manufacturer: Mitsubishi

272
Structure of Register
Refer to the figure below as for each register.
< E x a m p l e >
P r o c e s s o r m o d e r e g i s t e r 1 ( N o t e )
b 7
b 6
0 0 0
N o t e s 1 : V a l u e s i m m e d i a t e l y a f t e r r e s e t r e l e a s e
b 5
b 4
2 : B i t a t t r i b u t e s • • • • • • T h e a t t r i b u t e s o f c o n t r o l r e g i s t e r b i t s a r e c l a s s i f i e d i n t o 3 t y p e s : r e a d - o n l y ,
0
b 3
0 • • • • • • • • • • • • • • • • • • “ 0 ” a f t e r r e s e t r e l e a s e
1 • • • • • • • • • • • • • • • • • • “ 1 ” a f t e r r e s e t r e l e a s e
? • • • • • • • • • • • • • • • • • • I n d e t e r m i n a t e a f t e r r e s e t r e l e a s e
R• • • • • • R e a d
W• • • • • • W r i t e
b 2
• • • • • • • • • • • • • • • • • • B i t i n w h i c h n o t h i n g i s a s s i g n e d
b 1
1
b 0
0
• • • • • • R e a d d i s a b l e d
• • • • • • R e a d e n a b l e d
• • • • • • B i t i n w h i c h n o t h i n g i s a s s i g n e d ( T h e r e a d v a l u e i s i n d e t e r m i n a t e u n l e s s o t h e r w i s e m e n t i o n e d . )
• • • • • • W r i t e d i s a b l e d
• • • • • • W r i t e e n a b l e d
• • • • • • B i t i n w h i c h n o t h i n g i s a s s i g n e d
N o t e : A s b i t 1 o f t h i s r e g i s t e r b e c o m e s “ 0 ” a t r e s e t , m u s t a l w a y s b e s e t t o “ 1 ” a f t e r r e s e t
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 i 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
i n d e t e r m i n a t e .
R e s e r v e d b i t s
B i t s y m b o l
R e s e r v e d b i t
R e s e r v e d b i t
P M 1 7
: B i t i n w h i c h n o t h i n g i s a s s i g n e d
w r i t e - o n l y a n d r e a d a n d w r i t e . I n t h e f i g u r e , t h e s e a t t r i b u t e s a r e r e p r e s e n t e d
a s f o l l o w s :
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
S y m b o l
P M 1
r e l e a s e . S e t b i t 1 o f t h e p r o t e c t r e g i s t e r ( a d d r e s s 0 0 0 A
v a l u e s t o t h i s r e g i s t e r .
W a i t b i t
V a l u e s i m m e d i a t e l y
a f t e r r e s e t r e l e a s e
A d d r e s s
B i t n a m e
0 0 0 5
1 6
W h e n r e s e t
0 0 0 0 0 X 0 0
M u s t a l w a y s b e s e t t o “ 0 ”
M u s t a l w a y s b e s e t t o “ 1 ”
M u s t a l w a y s b e s e t t o “ 0 ”
0 : N o w a i t s t a t e
1 : W a i t s t a t e i n s e r t e d
( N o t e 1 )
2
and ON-SCREEN DISPLAY CONTROLLER
F u n c t i o n
MITSUBISHI MICROCOMPUTERS
1 6
) t o “ 1 ” w h e n w r i t i n g n e w
B i t a t t r i b u t e s
M306V2ME-XXXFP
M306V2EEFP
( N o t e 2 )
R
W
Rev. 1.0