M37212 Mitsubishi, M37212 Datasheet - Page 25

• Manufacturer Part Number: M37212
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
• Manufacturer: Mitsubishi

Fig. 8.4.1 Timer 12 Mode Register
Fig. 8.4.2 Timer 34 Mode Register
Rev. 1.0
T i m e r 3 4 M o d e R e g i s t e r
b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
T i m e r 1 2 M o d e R e g i s t e r
b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
0
6 , 7 N o t h i n g i s a s s i g n e d . T h e s e b i t s a r e w r i t e d i s a b l e b i t s .
0
1
5
B
4 T i m e r 4 c o u n t s o u r c e
2
3
T i m e r 3 4 m o d e r e g i s t e r ( T 3 4 M ) [ A d d r e s s 0 0 F 5
6 , 7 N o t h i n g i s a s s i g n e d . T h e s e b i t s a r e w r i t e d i s a b l e b i t s .
0
1
B
2
3
4
5 F i x t h i s b i t t o “ 0 . ”
T i m e r m o d e r e g i s t e r ( T 1 2 M ) [ A d d r e s s 0 0 F 4
M37212M4/M8–XXXSP, M37212M6–XXXSP/FP
W h e n t h e s e b i t s a r e r e a d o u t , t h e v a l u e s a r e “ 0 . ”
T i m e r 3 c o u n t s o u r c e
s e l e c t i o n b i t ( T 3 4 M 0 )
T i m e r 3 c o u n t s t o p b i t
( T 3 4 M 2 )
T i m e r 4 c o u n t s t o p b i t
( T 3 4 M 3 )
s e l e c t i o n b i t ( T 3 4 M 4 )
T i m e r 3 e x t e r n a l c o u n t
s o u r c e s e l e c t i o n b i t
( T 3 4 M 5 )
T i m e r 4 i n t e r n a l
i n t e r r u p t c o u n t s o u r c e
s e l e c t i o n b i t ( T 3 4 M 1 )
T i m e r 1 c o u n t s o u r c e
s e l e c t i o n b i t 1 ( T 1 2 M 0 )
T i m e r 2 c o u n t s o u r c e
s e l e c t i o n b i t ( T 1 2 M 1 )
T i m e r 1 c o u n t
s t o p b i t ( T 1 2 M 2 )
T i m e r 2 c o u n t s t o p b i t
( T 1 2 M 3 )
T i m e r 2 i n t e r n a l c o u n t
s o u r c e s e l e c t i o n b i t 2
( T 1 2 M 4 )
W h e n t h e s e b i t s a r e r e a d o u t , t h e v a l u e s a r e “ 0 . ”
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
N a m e
N a m e
0 : C o u n t s t a r t
1 : C o u n t s t o p
0 : C o u n t s t a r t
1 : C o u n t s t o p
0 : I n t e r n a l c l o c k s o u r c e
1 : f ( X
0 : T I M 3 p i n i n p u t
1 : H
0 : f ( X
1 : E x t e r n a l c l o c k s o u r c e
0 : T i m e r 3 o v e r f l o w s i g n a l
1 : f ( X
0 : f ( X
1 : f ( X
0 : I n t e r r u p t c l o c k s o u r c e
1 : E x t e r n a l c l o c k f r o m T I M 2 p i n
0 : C o u n t s t a r t
1 : C o u n t s t o p
0 : C o u n t s t a r t
1 : C o u n t s t o p
0 : f ( X
1 : T i m e r 1 o v e r f l o w
S Y N C
I N
I N
I N
) / 2
I N
I N
I N
) / 1 6
) / 1 6
F u n c t i o n s
) / 1 6
) / 4 0 9 6
) / 1 6
p i n i n p u t
F u n c t i o n s
with ON-SCREEN DISPLAY CONTROLLER
1 6
1 6
]
]
MITSUBISHI MICROCOMPUTERS
M37212EFSP/FP
A f t e r r e s e t R W
A f t e r r e s e t
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R W
R W
R W
R W
R W
R W
R
R
R
R
R
R
R
R
R
—
W
W
W
W
W
W
W
—
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