MTV048 View Datasheet(PDF) - Unspecified
Part Name
Description
Manufacturer
MTV048 Datasheet PDF : 19 Pages
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MYSON
TECHNOLOGY
MTV048
(Rev 0.9)
3.11 Luminance & Border Generator
There are 3 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.
3.12 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 5.
Window 1 has the highest priority, and window 4 is the least, when two windows are overlapping. More
detailed information is described as follows:
1. Window control registers,
ROW 15
Column
0,3,6 or 9
b7
b6
b5
ROW START ADDR
MSB
b4
LSB
b3
MSB
b2
b1
ROW END ADDR
b0
LSB
Column
b7
1,4,7 or 10 MSB
b6
b5
b4
COLUMN START ADDR
b3
LSB
b2
WEN
b1
b0
- WSHD
Column
b7
2,5,8 or 11 MSB
b6
b5
b4
COLUMN END ADDR
b3
b2
R
LSB
b1
G
b0
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 would be disabled.
WEN - Enable the relative background window display.
WSHD - Enable shadowing on the relative window.
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
VERTD - Specify the starting position for vertical display. The total steps are 256, and the increment of each
step is 4 Horizontal display lines. The initial value is 4 after power up.
b7
b6
b5
b4
b3
b2
b1
b0
Column 13
HORD
MSB
LSB
HORD - Define the starting position for horizontal display. The total steps are 256, and the increment of each
step is 6 dots. The initial value is 15 after power up.
Rev 0.9
- 11 -
2001/03/15
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