MTV018N24 View Datasheet(PDF) - Myson Century Inc
Part Name
Description
Manufacturer
MTV018N24 Datasheet PDF : 16 Pages
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MYSON
TECHNOLOGY
MTV018
3.8 Character ROM
The character ROM contains 248 built-in characters and symbols from address 0 to 247. Each character and
symbol consists of 12x18 dots matrix. The detail pattern structures for each character and symbols are shown
in “CHARACTERS AND SYMBOLS PATTERN” on page 16.
3.9 Luminance & border generator
There are 2 shift registers included in the design which can shift out of luminance and border dots to color
encoder. The bordering and shadowing feature is configured in this block. For bordering effect, the character
will be enveloped with blackedge on four sides. For shadowing effect, the character is enveloped with
blackedge for right and bottom sides only.
3.10 Window and frame control
The display frame position is completely controlled by the contents of VERTD and HORD. The window size
and position control are specified in column 0 to 11 on row 15 of memory map, as shown in Figure 4. Window
1 has the highest priority, and window 4 is the least, when two windows are overlapping. More detailed infor-
mation is described as follows:
1. Window control registers,
ROW 15
Column
0,3,6,OR 9
b7
MSB
b6
b5
ROW START ADDR
b4
b3
LSB MSB
b2
b1
ROW END ADDR
b0
LSB
b7
Column
1,4,7,OR 10 MSB
b6
b5
b4
COL START ADDR
b3
b2
b1
b0
LSB WEN CCS
-
b7
b6
b5
b4
b3
b2
b1
b0
Column
2,5,8,OR 11 MSB
COL END ADDR
LSB R
G
B
START(END) ADDR - These addresses are used to specify the window size. It should be noted that when the
start address is greater than the end address, the window will be disabled.
WEN - Enable the window display.
CCS - When a window is overlapping with the character, character color 2 should be chosen while this bit is
set to 1. Otherwise color 1 is selected.
R, G, B - Specify the color of the relative background window.
2. Frame control registers,
ROW 15
b7 b6 b5 b4 b3 b2 b1 b0
Column 12
VERTD
MSB
LSB
9/16
MTV018 Revision 4.0 10/21/1999
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