M37212 Mitsubishi, M37212 Datasheet - Page 66

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

8.10.5 Color Register
The color of a displayed character can be specified by setting the
color to one of the 4 registers (CO0 to CO3: addresses 00E6
00E9
There are 3 color outputs; R, G and B. By using a combination of
these outputs, it is possible to set 8 colors. However, since only 4
color registers are available, up to 4 colors can be disabled at one
time.
R, G and B outputs are set by using bits 1 to 3 in the color register. Bit
5 is used to specify whether a character output or blank output. Bits
4, 6 and 7 are used to specify character background color. Figure
8.10.12 shows the color register.
Fig. 8.10.13 Color Register i
66
16
) and then specifying that color register with the OSD RAM.
C o l o r R e g i s t e r i
b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
N o t e s 1 : W h e n b i t 5 = “ 0 ” a n d b i t 4 = “ 1 , ” t h e r e i s o u t p u t s a m e a s a c h a r a c t e r o r
M37212M4/M8–XXXSP, M37212M6–XXXSP/FP
B
1
2
3
4
5
6
7
0
C o l o r r e g i s t e r i ( C O i ) ( i = 0 t o 3 ) [ A d d r e s s e s 0 0 E 6
O U T 1 s i g n a l o u t p u t c o n t r o l b i t
( C O i 5 ) ( S e e n o t e s 1 , 2 )
B s i g n a l o u t p u t s e l e c t i o n
b i t ( C O i 1 )
G s i g n a l o u t p u t s e l e c t i o n
b i t ( C O i 2 )
R s i g n a l o u t p u t s e l e c t i o n
b i t ( C O i 3 )
B s i g n a l o u t p u t ( b a c k g r o u n d )
s e l e c t i o n b i t ( C O i 4 ) ( S e e n o t e 1 )
G s i g n a l o u t p u t ( b a c k g r o u n d )
s e l e c t i o n b i t ( C O i 6 ) ( S e e n o t e 1 )
R s i g n a l o u t p u t ( b a c k g r o u n d )
s e l e c t i o n b i t ( C O i 7 ) ( S e e n o t e 2 )
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 . ”
2 : W h e n o n l y b i t 7 = “ 1 ” a n d b i t 5 “ 0 , ” t h e r e i s o u t p u t f r o m p i n O U T 2 .
b o r d e r o u t p u t f r o m p i n O U T 1 .
D o n o t s e t b i t 5 = “ 0 ” a n d b i t 4 = “ 0 . ”
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
N a m e
16
@
to
0 : N o c h a r a c t e r i s o u t p u t
1 : C h a r a c t e r i s o u t p u t
0 : N o c h a r a c t e r i s o u t p u t
1 : C h a r a c t e r i s o u t p u t
0 : N o c h a r a c t e r i s o u t p u t
1 : C h a r a c t e r i s o u t p u t
0 : N o b a c k g r o u n d c o l o r i s o u t p u t
1 : B a c k g r o u n d c o l o r i s o u t p u t
0 : C h a r a c t e r i s o u t p u t
1 : B l a n k i s o u t p u t
0 : N o b a c k g r o u n d c o l o r i s o u t p u t
1 : B a c k g r o u n d c o l o r i s o u t p u t
0 : N o b a c k g r o u n d c o l o r i s o u t p u t
1 : B a c k g r o u n d c o l o r i s o u t p u t
F u n c t i o n s
1 6
t o 0 0 E 9
with ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
1 6
]
M37212EFSP/FP
I n d e t e r m i n a t e
I n d e t e r m i n a t e
I n d e t e r m i n a t e
I n d e t e r m i n a t e
I n d e t e r m i n a t e
I n d e t e r m i n a t 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 W
0
R —
R W
R W
R W
R W
R W
R W
R W
Rev. 1.0