Datenblatt-pdf.com


MTV038 Schematic ( PDF Datasheet ) - Myson

Teilenummer MTV038
Beschreibung On-Screen Display Controller for CRT/LCD Monitor
Hersteller Myson
Logo Myson Logo 




Gesamt 25 Seiten
MTV038 Datasheet, Funktion
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






MTV038 Datasheet, Funktion
MYSON
TECHNOLOGY
MTV038
(Revision 1.1)
3.2 Address bus administrator
The administrator manages bus address arbitration of internal registers or user fonts RAM during external
data write in. The external data write through serial data interface to registers must be synchronized by inter-
nal display timing. In addition, the administrator also provides automatic increment to address bus when exter-
nal write using format (c).
3.3 Vertical display control
The vertical display control can generates different vertical display sizes for most display standards in current
monitors. The vertical display size is calculated with the information of double character height bit(CHS), verti-
cal display height control register(CH6-CH0).The algorithm of repeating character line display are shown as
Table 2 and Table 3. The programmable vertical size range is 270 lines to maximum 2130 lines.
The vertical display center for full screen display could be figured out according to the information of vertical
starting position register (VERTD) and VFLB input. The vertical delay starting from the leading edge of VFLB,
is calculated with the following equation:
Vertical delay time = ( VERTD * 4 + 1 ) * H
TABLE 2. Repeat Line Weight of Character
CH6 - CH0
CH6,CH5=11
CH6,CH5=10
CH6,CH5=0x
CH4=1
CH3=1
CH2=1
CH1=1
CH0=1
Repeat Line Weight
+18*3
+18*2
+18
+16
+8
+4
+2
+1
Where H = one horizontal line display time
TABLE 3. Repeat Line Number of Character
Repeat Line
Repeat Line #
Weight
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
+1 - - - - - - - - v - - - - - - - - -
+2 - - - - v - - - - - - - v - - - - -
+4 - - v - - - v - - - v - - - v - - -
+8 - v - v - v - v - v - v - v - v - -
+16 - v v v v v v v v v v v v v v v v -
+17 v v v v v v v v v v v v v v v v v -
+18 v v v v v v v v v v v v v v v v v v
Note:" v " means the nth line in the character would be repeated once, while " - " means the nth line in the
character would not be repeated.
3.4 Horizontal display control
The horizontal display control is used to generate control timing for horizontal display based on double char-
acter width bit (CWS), horizontal positioning register (HORD), horizontal resolution register (HORR), and
HFLB input. A horizontal display line consists of (HORR*12) dots which include 360 dots for 30 display char-
Revision 1.1
-6-
2001/8/21

6 Page









MTV038 pdf, datenblatt
MYSON
TECHNOLOGY
MTV038
(Revision 1.1)
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 relative background window display.
WINT - Specify the color intensity of the relative background window. Setting this bit to 0 means low intensity
in this background window.
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
MSB
VERTD
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
MSB
HORD
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.
b7
Column 14 -
b6 b5 b4 b3 b2 b1 b0
CH6 CH5 CH4 CH3 CH2 CH1 CH0
CH6-CH0 - Define the character vertical height, the height is programmable from 18 to 71 lines. The character
vertical height is at least 18 lines if the contents of CH6-CH0 is less than 18. For example, when
the contents is " 2 ", the character vertical height is regarded as equal to 20 lines. And if the con-
tents of CH4-CH0 is greater than or equal to 18, it will be regarded as equal to 17. See Table 2
and Table 3 for detail description of this operation.
b7 b6 b5 b4 b3 b2 b1 b0
Column 15
-
MSB
HORR
LSB
(This byte is used only for CRT monitor application.)
HORR - Specify the resolution of a horizontal display line, and the increment of each step is 12 dots. That is,
the number of pixels per H line equal to HORR*12. It is recommended that HORR should be greater
than or equal to 36 and smaller than 150M / (Hfreq*12). The initial value is 40 after power up.
Revision 1.1
-12-
2001/8/21

12 Page





SeitenGesamt 25 Seiten
PDF Download[ MTV038 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
MTV030On-Screen Display with Auto-Sizing ControllerMyson
Myson
MTV038On-Screen Display Controller for CRT/LCD MonitorMyson
Myson

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche