MYSON
TECHNOLOGY
MTV118
sen, only even column characters may be displayed on-screen and the odd column characters will be
hidden.
ROW # 0 1
0
1
COLUMN #
28 29 30
31
DISPLAY REGISTERS
ROW CTRL
REG RESERVED
13
14
ROW 15
COLUMN#
0
23
56
89
11 12
18 19
26
WINDOW1 WINDOW2 WINDOW3 WINDOW4 FRAME CRTL PWM D/A
REG
CRTL REG
FIGURE 4. Memory map
3.5.1 Register Descriptions
1. (i) Display Register, (Row 0 - 14, Column 0 - 29)
ADDRESS BYTE
b7
b6
b5
b4
b3
b2
b1
b0
CRADDR
MSB
LSB
CRADDR - Defines ROM character and user-programmable fonts address.
(a) 0 ~ 247 ⇒ 248 built-in characters and graphic symbols
(b) 248 ~ 255 ⇒ 8 user-programmable fonts
ATTRIBUTE BYTE
b7
b6
b5
b4
b3
b2
b1
b0
-
-
-
-
BLINK R1
G1
B1
BLINK - Enables blinking effect when this bit is set to " 1 ". The blinking is alternated per 32 vertical
frames.
R1, G1, B1 - These bits are used to specify its relative address character color 1.
2. Row Control Registers, (Row 0 - 14)
COLN 30
b7
-
b6
-
b5
-
b4 b3
R2 G2
b2 b1 b0
B2 CHS CWS
R2, G2, B2 - These bits are used to specify its relative row character color 2. While the corresponding
CCS bit is set to 1, color 2 should be chosen.
CHS - Defines double height character to the respective row.
CWS - Defines double width character to the respective row.
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MTV118 Revision 2.0 01/01/1999