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Part: MTV038
Category:
Optoelectronics
-> Display
-> On-Screen Display
Description: On-screen Display For Crt/lcd Monitor
Company: Myson Technology
Datasheet: Download MTV038 datasheet File size : 119 kB
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Datasheet text preview:
MYSON TECH NOLOGY
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.
MTV038 (Revision 1.1)
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 control 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 character background, bordering, shadowing, blinking, double height and width, font by font color control, character button boxes, frame positioning, frame size control by character height and row-to-row spacing, horizontal display resolution, full-screen erasing, fade-in/fade-out effect, windowing effect, shadowing on window and full-screen selftest 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.
On-Screen Display Controller for CRT/LCD Monitor
BLOCK DIAGRAM
SSB 8 DATA SCK DATA 8 CWS CHS LUMAR LUMAG LUMAB BLINK 8 CRADDR VDD VSS
SERIAL DATA INTERFACE
9 ROW, COL ACK
DISPLAY & ROW CONTROL REGISTERS
SDA 5 RCADDR 9 DADDR 9 FONTADDR 5 WINADDR 5 PWMADDR DATA LPN CWS VCLKS VFLB VSP CH 7 CHS VERTD 8 5 LPN NROW VDREN DATA 8 8 VERTD 8 HORD 7 CH 8 5
VDDA
CHARACTER ROM LUMINANCE & BORDGER GENERATOR
LUMA BORDER VSSA
ARWDB HDREN VDREN NROW
ADDRESS BUS ADMINISTRATOR
VERTICAL DISPLAY CONTROL
HORIZONTAL DISPLAY CONTROL PHASE LOCK LOOP
WINDOWS & FRAME CONTROL
WR WG WB FBKGC BLANK
BSEN SHADOW OSDENB HSP VSP
HFLB HSP RP VCO RIN GIN BIN HORD 8
ARWDB HDREN VCLKX LUMAR LUMAG LUMAB BLINK VCLKX
ROUT GOUT BOUT FBKG HTONE
COLOUR ENCODER
AUTO SIZING MEASUREMENT
PRB 8 DATA
POWER ON RESET
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
MYSON TECH NOLOGY
1.0 PIN CONNECTION
MTV038 (Revision 1.1)
VSSA VCO/XIN RP/NC V DDA HF LB SSB S DA S CK
1 2
16 15
VSS ROUT GOUT BOUT FBKG INT VF LB VDD
VSSA VCO/XIN RP/NC VDDA HFLB SSB SDA SCK RIN GIN
1 2 3
20 19 18
VSS ROUT GOUT BOUT FBKG INT VFLB V DD NC BIN
MTV038N-xx
3 4 5 6 7 8
14 13 12 11 10 9
4 5 6 7 8 9 10
MTV038N20-xx
17 16 15 14 13 12 11
2.0 PIN DESCRIPTIONS
Name VSSA I/O Pin No.
16 20
Descriptions Analog ground. This ground pin is used to internal analog circuitry. Voltage Control Oscillator (bit LCD= 0). This pin is used to control the internal oscillator frequency by DC voltage input from external low pass filter. Pixel Clock Input (bit LCD= 1). This is a clock input pin. MTV038 can be driven by an external pixel clock source for all the logics inside. The frequency of XIN must be the integral time of pin HFLB. Bias Resistor (bit LCD= 0). The bias resistor is used to regulate the appropriate bias current for internal oscillator to resonate at specific dot frequency. No connection (bit LCD= 1). Analog power supply. Positive 5 V DC supply for internal analog circuitry. And a 0.1uF decoupling capacitor should be connected across to VDDA and VSSA. Horizontal input. This pin is used to input the horizontal synchronizing signal. It is a leading edge triggered and has an internal pull-up resistor. Serial interface enable. It is used to enable the serial data and is also used to select the operation of I2C or SPI bus. If this pin is left floating, I2C bus is enabled, otherwise the SPI bus is enabled. Serial data input. The external data transfer through this pin to internal display registers and control registers. It has an internal pull-up resistor. -22001/8/21
1
1
VCO/XIN
I/O
2
2
RP/NC
I/O
3
3
VDDA
-
4
4
HFLB
I
5
5
SSB
I
6
6
SDA
I
7
7
Revision 1.1
MYSON TECH NOLOGY
Name SCK RIN GIN BIN NC V DD I/O I I I I Pin No.
16 20
MTV038 (Revision 1.1)
Descriptions
8 9
8 9 10 11 12 13
Serial clock input. The clock-input pin is used to synchronize the data transfer. It has an internal pull-up resistor. Red video input. It is used for auto sizing measurement and this signal is came from video pre-amp red output. Green video input. It is used for auto sizing measurement and this signal is came from video pre-amp green output. Blue video input. It is used for auto sizing measurement and this signal is came from video pre-amp blue output. No connection. Digital power supply. Positive 5 V DC supply for internal digital circuitry and a 0.1uF decoupling capacitor should be connected across to VDD and VSS. Vertical input. This pin is used to input the vertical synchronizing signal. It is leading triggered and has an internal pull-up resistor. Intensity color output. 16-color selection is achievable by combining this intensity pin with R/G/B output pins. Fast Blanking output. It is used to cut off external R, G, B signals of VGA while this chip is displaying characters or windows. Blue color output. It is a blue color video signal output. Green color output. It is a green color video signal output. Red color output. It is a red color video signal output. Digital ground. This ground pin is used to internal digital circuitry.
VFLB INT FBKG BOUT G O UT ROUT VSS
I O O O O O -
10 11 12 13 14 15 16
14 15 16 17 18 19 20
3.0 FUNCTIONAL DESCRIPTIONS
3.1 SERIAL DATA INTERFACE
The serial data interface receives data transmitted from an external controller. And there are 2 types of bus can be accessed through the serial data interface, one is SPI bus and other is I2C bus. 3.1.1 SPI bus While SSB pin is pulled to "high" or "low" level, the SPI bus operation is selected. And a valid transmission should be starting from pulling SSB to "low" level, enabling MTV038 to receiving mode, and retain "low" level until the last cycle for a complete data packet transfer. The protocol is shown in Figure 1.
Revision 1.1
-3-
2001/8/21
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