STV9428 SGS-Thomson-Microelectronics, STV9428 Datasheet

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STV9428

Manufacturer Part Number
STV9428
Description
HIGH SPEED MULTISYNC ON-SCREEN DISPLAY FOR MONITOR
Manufacturer
SGS-Thomson-Microelectronics
Datasheet

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STV9428
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Part Number:
STV9428-1
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DESCRIPTION
The STV9427/28/29 is an ON SCREEN DISPLAY
for monitor. It is built as a slave peripheral con-
nected to a host MCU via a serial I
includes a display memory, controls all the display
attributes and generates pixels from the data read
in its on chip memory. The line PLL and a special
slice interpolator allow to have a display aspect
which does not depend on the line and frame
frequencies. I
transparent internal access to prepare the next
pages during the display of the current page. Tog-
gle from one page to another by programming only
one register.
June 1998
CMOS SINGLE CHIP OSD FOR MONITOR
BUILT IN 1 KBYTE RAM HOLDING :
- CHARACTER CODES
- USER DEFINABLE CHARACTERS
207 ALPHANUMERIC CHARACTERS OR
GRAPHIC SYMBOLS IN INTERNAL ROM
12 x 18 CHARACTER DOT MATRIX
PROGRAMMABLE ACCENTUATED CHARAC-
TER SET
CHARACTER BLINKING
RAM DEFINABLE COLOR LOOK UP TABLE
UP TO 16 USER DEFINABLE CHARACTERS
UP TO 80MHz PIXEL CLOCK
INTERNAL HORIZONTAL PLL (15 TO 120kHz)
PROGRAMMABLE VERTICAL HEIGHT OF
CHARACTER WITH A SLICE INTERPOLATOR
TO MEET MULTI-SYNCH REQUIREMENTS
PROGRAMMABLE VERTICAL AND HORI-
ZONTAL POSITIONING
FLEXIBLE SCREEN DESCRIPTION
22 CONTROL CODES FOR POWERFULL
SERIAL ATTRIBUTES
2-WIRES ASYNCHRONOUS SERIAL MCU
INTERFACE (I
8 x 8 BITS PWM DAC OUTPUTS
SINGLE POSITIVE 5V SUPPLY
2
MULTISYNCH ON-SCREEN DISPLAY FOR MONITOR
C interface allows MCU to make
2
C PROTOCOL)
2
C bus. It
8 x 8 bits PWM DAC are available to provide DC
voltage control to other peripherals.
The STV9427/28/29 provides the user an easy to
use and cost effective solution to display alphanu-
meric or graphic information on monitor screen.
STV9428-STV9429
ORDER CODE : STV9427
ORDER CODE : STV9428
ORDER CODE : STV9429
(Plastic Package)
(Plastic Package)
(Plastic Package)
DIP16
DIP20
DIP24
HIGH SPEED
STV9427
1/20

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STV9428 Summary of contents

Page 1

... PWM DAC are available to provide DC voltage control to other peripherals. The STV9427/28/29 provides the user an easy to use and cost effective solution to display alphanu- meric or graphic information on monitor screen. ORDER CODE : STV9427 ORDER CODE : STV9428 2 C bus. It ORDER CODE : STV9429 STV9427 HIGH SPEED ...

Page 2

... STV9427 - STV9428 - STV9429 PIN CONNECTIONS DIP16 (STV9427 DD1 TST XTO XTI RESET 5 FBLK 12 VSYNC 6 GND 11 HSYNC 7 SDA 10 GND 8 SCL 9 PIN DESCRIPTION Pin Number Symbol DIP24 PWM6 1 PWM1 DD1 TST 4 XTO 5 XTI 6 RESET 7 VSYNC 8 HSYNC 9 GND ...

Page 3

... FBLK GND GND SCL V V XTO TST DD1 DD2 ROM Address/Data FBLK GND GND SCL STV9427 - STV9428 - STV9429 1K RAM BUS INTERFACE STV9427 9 10 SCL SDA 1K RAM 20 PWM0 11 PWM3 10 PWM2 1 PWM1 BUS INTERFACE STV9428 12 13 SDA ...

Page 4

... STV9427 - STV9428 - STV9429 ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage DD V Input Voltage IN T Operating Temperature OPER T Storage Temperature STG ELECTRICAL CHARACTERISTICS ( 5V 0V, T DD1 DD2 SS Symbol SUPPLY V Supply Voltage DD I Supply Current DD INPUTS SCL, SDA, RESET, VSYNC and HSYNC V Input Low Voltage ...

Page 5

... Note 1 : These parameters are not tested on each unit. They are measured during our internal qualification procedure which includes characterization on batches comming from corners of our processes and also temperature characterization. Figure XTI t WH Parameter Figure 3 Stop t BUF SDA t HDS SCL t STV9427 - STV9428 - STV9429 Min. Typ. Max 288 500 500 500 ...

Page 6

... STV9427 - STV9428 - STV9429 FUNCTIONAL DESCRIPTION The STV9427/28/29 display processor operation is controlled by a host MCU via the I fully programmable through internal read/write reg- isters and performs all the display functions by generating pixels from data stored in its internal memory. After the page downloading from the ...

Page 7

... V67 V66 V65 V64 V63 V62 V61 V60 V6[7:0] : Digital value of the 7 Control registers PULSE WIDTH MODULATOR 7 (STV9429) 3FD7 V77 V76 V75 V74 V73 V72 V71 V70 V7[7:0] : Digital value of the 8 Note : Power on reset default value of PMW register is 00H STV9427 - STV9428 - STV9429 st PWM converter. nd PWM DAC. rd PWM DAC. ...

Page 8

... STV9427 - STV9428 - STV9429 FUNCTIONAL DESCRIPTION (continued) I.4.2 - Look-up Table Registers Color look-up table [CLUT] is read/write RAM table. Mapping address is described in Chapter I.3.2. The CLUT is splitted in 2 blocks of 8 bytes. Each byte contains foreground and background informa- tions as described below : SHA SHA ...

Page 9

... SL[7:0] : Number of selected height (character or scan CHARACTER MSB LSB DE CLU[3:0] : Active color selection at the begining of the C[9:1] UEN - BF2 BF1 BF0 STV9427 - STV9428 - STV9429 : Lock enable 0 = R,G,B, FBLK are always enabled R,G,B, FBLK are enabled only when PLL is locked FM3 FM2 FM1 FM0 reach the high frequency used by the PLL to derive the pixel frequency ...

Page 10

... STV9427 - STV9428 - STV9429 FUNCTIONAL DESCRIPTION (continued) III - Code Format The codes of STV9427/28/29 are all single byte codes. There are basically 3 kinds of code : - The control codes from (00h to 1Bh) and from 224 to 239 (E0h to EFh). - The ROM character codes from 32 to 223 (20h to DFh) and from 240 to 255 (F0h to FFh) ...

Page 11

... L ® © m << ¥ n Arr If fv Hpos1 / ? Arr up hz Hpos2 STV9427 - STV9428 - STV9429 Hlin1 Box0 Bar5 Bar21 Hlin2 Box1 Bar6 Bar22 Bright Kystn Box2 Bar7 10o Color Kybal1 Box3 Bar8 1o0 Spkr ...

Page 12

... STV9427 - STV9428 - STV9429 FUNCTIONAL DESCRIPTION (continued) III.3 - User Definable Character Codes (UDC) Codes 240 to 254 (F0h to FEh) refer to character shape loaded in RAM. The STV9427/28/29 allows the user to dynamically define character(s) for his own needs (for a special LOGO for example). Like the ROM characters, a UDC is made pixels x 18 slices dot matrix. ...

Page 13

... VSYNC. Figure 8 : PWM Timing f XTAL and x 6 256 V1[7: 128 255 STV9427 - STV9428 - STV9429 80 81 addresses). Two types of strips are st displayed character. The characters and st one given by the st one given by the descriptor until a end PWM1 Signal 256 . T XTAL ...

Page 14

... STV9427 - STV9428 - STV9429 FUNCTIONAL DESCRIPTION (continued) Figure 9 : Relation between Screen/Address Page/Character Code in RAM Figure 10 : User Definable Character ON THE SCREEN 36 Pixels (= 3 Characters 14/ Character Number ...

Page 15

... FUNCTIONAL DESCRIPTION (continued) Table 5 : ROM Character Generator STV9427 - STV9428 - STV9429 15/20 ...

Page 16

... STV9427 - STV9428 - STV9429 FUNCTIONAL DESCRIPTION (continued PLL The PLL function of the STV9427/28/29 provides the internal pixel clock locked on the horizontal synchro signal and used by the display processor to generate the and fast blancking signals made of 2 PLLs. The first one analogic (see Figure 11), provides a high frequency signal locked on the crystal frequency ...

Page 17

... NNNY YYYN Value of LINE DURATION Register (@ 3FF0 :LD[6:0] = 0010000, LD[6:1] = 001000 :LD[6:0] = 0100000 :LD[6:0] = 0110000 :LD[6:0] = 1000000, LD[6:1] = 100000. Table meaning : possible capture - No stability STV9427 - STV9428 - STV9429 > 0.7 damping teristic Equation Solutions (with Complex Solutions YNNN ...

Page 18

... STV9427 - STV9428 - STV9429 PACKAGE MECHANICAL DATA (STV9427) 16 PINS - PLASTIC DIP Dimensions Min. a1 0. 18/20 Millimeters Typ. Max. 1.65 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27 Inches Min. Typ. 0.020 0.030 0.065 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 Max. ...

Page 19

... PACKAGE MECHANICAL DATA (STV9428) 20 PINS - PLASTIC DIP Dimensions Min. a1 0.254 B 1. Millimeters Typ. Max. 1.65 0.45 0.25 25.4 8.5 2.54 22.86 7.1 3.93 3.3 1.34 STV9427 - STV9428 - STV9429 Inches Min. Typ. 0.010 0.055 0.065 0.018 0.010 1.000 0.335 0.100 0.900 0.280 0.155 0.130 0.053 Max. 19/20 ...

Page 20

... STV9427 - STV9428 - STV9429 PACKAGE MECHANICAL DATA (STV9429) 24 PINS - PLASTIC DIP Dimensions Min 0. 15 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use ...

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