M37212 Mitsubishi, M37212 Datasheet - Page 29

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

Fig. 8.5.3 Serial I/O Mode Register
Rev. 1.0
S e r i a l I / O 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
0 , 1 I n t e r n a l s y n c h r o n o u s
B
2
3
5
6
7
4 F i x t h i s b i t t o “ 0 . ”
S e r i a l I / O m o d e r e g i s t e r ( S M ) [ A d d r e s s 0 0 D C
M37212M4/M8–XXXSP, M37212M6–XXXSP/FP
c l o c k s e l e c t i o n b i t s
( S M 0 , S M 1 )
S y n c h r o n o u s c l o c k
s e l e c t i o n b i t ( S M 2 )
S e r i a l I / O p o r t
s e l e c t i o n b i t ( S M 3 )
T r a n s f e r d i r e c t i o n
s e l e c t i o n b i t ( S M 5 )
S e r i a l i n p u t p i n
s e l e c t i o n b i t ( S M 6 )
N o t h i n g i s a s s i g n e d . T h i s b i t i s a w r i t e d i s a b l e b i t .
W h e n t h i s b i t i s r e a d o u t , t h e v a l u e i s “ 0 . ”
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
N a m e
b 1 b 0
0 : I n p u t s i g n a l f r o m S
1 : I n p u t s i g n a l f r o m S
0 : E x t e r n a l c l o c k
1 : I n t e r n a l c l o c k
0 : P 4
1 : S
0 : L S B f i r s t
1 : M S B f i r s t
0 0 : f ( X
0 1 : f ( X
1 0 : f ( X
1 1 : f ( X
O U T ( / I N )
0
, P 4
I N
I N
I N
I N
) / 4
) / 1 6
) / 3 2
) / 6 4
1
, S
F u n c t i o n s
C L K
with ON-SCREEN DISPLAY CONTROLLER
1 6
MITSUBISHI MICROCOMPUTERS
]
I N
O U T
p i n .
p i n .
M37212EFSP/FP
A f t e r r e s e t R W
0
0
0
0
0
0
0
R W
R W
R W
R W
R W
R W
R —
29