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PDF MTV038 Data sheet ( Hoja de datos )
| Número de pieza | MTV038 | |
| Descripción | On-Screen Display Controller for CRT/LCD Monitor | |
| Fabricantes | Myson | |
| Logotipo |  |
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MYSON
TECHNOLOGY
MTV038
(Revision 1.1)
On-Screen Display Controller for CRT/LCD Monitor
FEATURES
• Horizontal SYNC input up to 150 KHz.
• On-chip PLL circuitry or external pixel clock input up to
150 MHz.
• Software control for CRT/LCD applications.
• Programmable R,G,B input level for timing measurement
among HFLB, VFLB, RIN, GIN and BIN for auto sizing.
• Full screen self-test pattern generator.
• Programmable Hor. resolutions up to 1524 dots per line.
• Full-screen display consists of 15 (rows) by 30 (columns)
• Two font size 12x16 or 12x18 dot matrix per character.
• True totally 544 mask ROM fonts including 512 standard
fonts and 32 multi-color fonts.
• Character button boxes with programmable box length.
• Double character height and/or width control.
• Programmable positioning for display screen center.
• Character bordering, shadowing and blinking effect.
• Character (per row) and window intensity control.
• Row to row spacing control to avoid expansion distortion.
• 4 programmable windows with multi-level operation.
• Shadowing on windows with programmable shadow
width/height/color.
• Programmable adaptive approach to handle H, V sync
collision automatically by hardware.
• Software clears bit for full-screen erasing.
• Fade-in/fade-out or blending-in/blending-out effects.
• Compatible with SPI bus or I2C interface with slave
address 7AH/7BH (slave address is mask option).
• 16-pin or 20-pin PDIP/SOP package.
GENERAL DESCRIPTION
MTV038 is designed for CRT/LCD monitor applications
to display built-in characters or fonts onto monitor screens.
The display operation occurs by transferring data and con-
trol information from the micro-controller to RAM through a
serial data interface. It can execute full-screen display
automatically, as well as specific functions such as charac-
ter background, bordering, shadowing, blinking, double
height and width, font by font color control, character but-
ton boxes, frame positioning, frame size control by charac-
ter height and row-to-row spacing, horizontal display
resolution, full-screen erasing, fade-in/fade-out effect, win-
dowing effect, shadowing on window and full-screen self-
test pattern generator.
MTV038 provides 544 fonts including 512 standard
fonts and 32 multi-color fonts and 2 font sizes, 12x16 or
12x18 for more efficacious applications. The full OSD
menu is formed by 15 rows x 30 columns, which can be
positioned anywhere on the monitor screen by changing
vertical or horizontal delay.
The auto sizing video measurement module measure
the timing relationship among HFLB, VFLB, and R, G, BIN
with 12-bit resolution at the speed related to the OSD pixel
clock. And the R, G, BIN input level can be programming
by software. MCU can get the measurement data, active
video, front porth and back porth, through I2C bus read/
write operation to keep the appropriate display size and
center.
BLOCK DIAGRAM
SSB
SCK
SDA
VFLB
HFLB
RP
VCO
RIN
GIN
BIN
SERIAL DATA
INTERFACE
8DATA
9ROW, COL
ACK
ARWDB
HDREN
VDREN
NROW
ADDRESS BUS
ADMINISTRATOR
5 RCADDR
9 DADDR
9 FONTADDR
5 WINADDR
5 PWMADDR
VSP
CH 7
CHS
VERTD 8
VERTICAL
DISPLAY
CONTROL
5 LPN
NROW
VDREN
HORIZONTAL
ARWDB
HSP HORD 8 DISPLAY CONTROL HDREN
PHASE LOCK LOOP VCLKX
AUTO SIZING
MEASUREMENT
8 DATA
DATA 8
CWS
CHS
DISPLAY & ROW
CONTROL
REGISTERS
LUMAR
LUMAG
LUMAB
BLINK
8 CRADDR
DATA 8
LPN 5
CWS
VCLKS
CHARACTER ROM
LUMINANCE &
BORDGER
GENERATOR
LUMA
BORDER
DATA 8
8 VERTD
8 HORD
7 CH
WINDOWS &
FRAME
CONTROL
BSEN
SHADOW
OSDENB
HSP
VSP
LUMAR
LUMAG
LUMAB
BLINK
VCLKX
PRB
COLOUR
ENCODER
POWER ON
RESET
VDD
VSS
VDDA
VSSA
ROUT
GOUT
BOUT
FBKG
HTONE
This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Revision 1.1
-1-
2001/8/21
1 page  
MYSON
TECHNOLOGY
MTV038
(Revision 1.1)
the format (c) is applied. Furthermore, the undefined locations in display or fonts RAM should be filled with
dummy data.
TABLE 1. The Configuration of Transmission Formats
Address b7 b6 b5 b4 b3 b2 b1 b0 Format
Row
1 0 0 R4 R3 R2 R1 R0
Address Bytes Columnab 0 0 D8 C4 C3 C2 C1 C0
of Display Reg. Columnc 0 1 D8 C4 C3 C2 C1 C0
Data
D7 D6 D5 D4 D3 D2 D1 D0
Row
1 0 1 R4 R3 R2 R1 R0
Attribute Bytes Columnab 0 0 x C4 C3 C2 C1 C0
of Display Reg. Columnc 0 1 x C4 C3 C2 C1 C0
Data
D7 D6 D5 D4 D3 D2 D1 D0
a,b,c
a,b
c
a,b,c
a,b,c
a,b
c
a,b,c
There are 2 types of data which should be accessed through the serial data interface, one is ADDRESS bytes
of display registers, and the other is ATTRIBUTE bytes of display registers, the protocols are same for all
except the bit5 of row address and the bit5 of column address. The MSB(b7) is used to distinguish row and
column addresses when transferring data from external controller. The bit6 of column address is used to dif-
ferentiate the column address for format (a), (b) and format (c) respectively. Bit5 of row address for display
register is used to distinguish ADDRESS byte when it is set to "0" and ATTRIBUTE byte when it is set to "1".
And at address bytes, bit5 of column address is the MSB (bit8) and data bytes are the 8 LSB (bit7~bit0)
of display fonts address to save half MCU memory for true 512 fonts display. So each one of the 512 fonts
can be displayed at the same time (see Table 1). And for format (c), since D8 is filled while program column
address of address bytes, the continued data will be the same bank of upper 256 fonts or lower 256 fonts until
program column address of address bytes again.
The data transmission is permitted to change from format (a) to format (b) and (c), or from format (b) to format
(a) and (c), but not from format (c) back to format (a) and (b). The alternation between transmission formats is
configured as the state diagram shown in Figure 3.
0, X
Initiate
Input = b7, b6
1, X
format (a)
1, X ROW
format (c)
0, 1
0, 0 format (b)
0, 0
COL
c
X, X
COL
0, 1 ab X, X
1, X
X, X DA
c
DA
ab
FIGURE 3. Transmission State Diagram
Revision 1.1
-5-
2001/8/21
5 Page 
MYSON
TECHNOLOGY
MTV038
(Revision 1.1)
B
G
R
Magenta
Green
Blue
Cyan
FIGURE 7. Example of Multi-Color Font
TABLE 4. The Multi-Color Font Color Selection
RGB
Background Color
0
0
0
Blue
001
Green
010
Cyan
011
Red 1 0 0
Magenta
101
Yellow
110
White
111
3.10 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.
3.11 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 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
Column
b7
1,4,7,OR 10 MSB
b6 b5 b4
COL START ADDR
b3 b2
LSB WEN
b1 b0
WINT WSHD
Revision 1.1
-11-
2001/8/21
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet MTV038.PDF ] | |
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