LC74772V Camcorder On-Screen Display Overview LC74772V

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LC74772V Camcorder On-Screen Display Overview LC74772V

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Ordering number EN5159A
LC74772V
Camcorder On-Screen Display
Overview
LC74772V CMOS that implements on-screen display camcorders. displays characters patterns camcorder viewfinder under microprocessor control. LC74772V displays font with characters.
Package Dimensions
unit: 3175A-SSOP24
[LC74772V]
Features
Screen format: lines characters characters) Number characters displayed: characters Character format: (horizontal) (vertical) dots Number characters font: characters Character sizes: Normal double, specified line units Display start position Horizontal: positions Vertical: positions Character reverse video function: Individual characters displayed reverse video. Types blinking: types with periods seconds, specifiable character basis. (Blinking display duty.) (Four divisors: 1/25, 1/30, 1/50, 1/60) Outputs: plus output systems output systems (character data blanking data: outputs each) External control input: 8-bit serial data input format
SANYO: SSOP24
Specifications
Absolute Maximum Ratings
Parameter Supply voltage Input voltage Output voltage Allowable power dissipation Operating temperature Storage temperature Symbol VOUT Topr Tstg input pins CKOUT, CHA4, BLK4, CHA3, BLK3, BLANK 25°C Conditions Ratings +125 Unit
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, JAPAN
O3096HA(OT)/D3095HA (OT) 5159-1/16
LC74772V Allowable Operating Ranges +70°C
Parameter Supply voltage Input high-level voltage Input low-level voltage Oscillator frequency Symbol FOSC CTRL1, TESTIN, SCLK, SIN, OUTMOD, HSYNC, VSYNC, CTRL1, TESTIN, SCLK, SIN, OUTMOD, HSYNC, VSYNC, OSCIN, OSCOUT oscillator) Conditions Ratings Unit
Electrical Characteristics +70°C, unless otherwise specified
Parameter Symbol Conditions CKOUT, CHA4, BLK4, CHA3, BLK3, BLANK: (VDD -1.0 (-0.5 CKOUT, CHA4, BLK4, CHA3, BLK3, BLANK: (VDD (0.5 CTRL1, TESTIN, SCLK, SIN, OUTMOD, HSYNC, VSYNC: CTRL1, TESTIN, HSYNC, VSYNC: pin; outputs open, oscillator: Ratings Unit
Output high-level voltage
Output low-level voltage
Input current Operating current drain
Timing Characteristics +70°C,
Parameter Symbol (SCLK) (CS) (CS) (SIN) (CS) (SIN) tword SCLK (the period that high) time write bits data data write time Conditions Ratings Unit
Minimum input pulse width
Data setup time
Data hold time
One-word write time
5159-2/16
LC74772V Serial Data Input Timing
Assignment signal names parentheses indicate output functions when 4-system output mode used.
5159-3/16
LC74772V Functions
PinNo. Symbol OSCIN OSCOUT CTRL1 TESTIN SCLK CKOUT BLK4 CHA4 BLK3 CHA3 BLANK OUTMOD VSYNC HSYNC Ground oscillator Clock input control Test control input Enable input Clock input Data input Clock output Blanking signal output Character data output Unused Unused Blanking signal output Character data output Blanking signal output Character data output Character data output Character data output Output control input Vertical synchronizing signal input Horizontal synchronizing Reset input Power supply Function Ground connection Connections coil capacitor that form oscillator that generates character output horizontal clock. Control input that switches between oscillator mode clock input mode Low: oscillator mode, high: clock input mode Test mode control input (The operates test mode when this input high.) Serial data input enable input Low: active (This input hysteresis characteristics.) Serial data input clock input (This input hysteresis characteristics.) Serial data input (This input hysteresis characteristics.) oscillator clock monitor output This signal output when low. Blanking signal output (system Functions system blanking data signal output 4-system mode. Character data signal output (system Functions system character data signal output 4-system mode. Must left open tied ground normal operation. Must left open tied ground normal operation. Blanking signal output (system Functions system blanking data signal output 4-system mode. Character data signal output (system Functions system character data signal output 4-system mode. Blanking signal output (blanking signal output) Functions system blanking data signal output 4-system mode. Character data signal output Functions system character data signal output 4-system mode. Character data signal output Functions system blanking data signal output 4-system mode. Character data signal output Functions system character data signal output 4-system mode. Control input that switches between output 4-system output Low: output, high 4-system output Vertical synchronizing signal input (This input hysteresis characteristics.) Horizontal synchronizing signal input (This input hysteresis characteristics.) signal input System reset signal input (This input hysteresis characteristics.) Power supply connection Description
Note: Built-in pull-up resistors specified inclusion (pin SCLK (pin (pin (pin pins mask options. clock input mode (when CTRL1 high), function that holds OSCIN (pin high during oscillator reset stopped.
5159-4/16
LC74772V Block Diagram
5159-5/16
LC74772V Display Control Commands display control commands have 8-bit serial input format. Data input first. Display Control Command Table
First byte Command COMMAND System setup COMMAND System setup COMMAND Input control setup COMMAND General-purpose port control COMMAND Display operation control: reverse video blinking COMMAND Display control: on/off settings each output COMMAND Output control: systems COMMAND Display control: border COMMAND Display start position COMMAND Display line control COMMAND write address COMMAND Display setup data Command code Data Second byte Data
CSYN POLT MOD1 MOD0 VSYN HSYN DATA POLT POLT PORT
DSPF SL34
BKO4 BKO4 BKO3 BKO3 BKO2 BKO2 BKO1 BKO1
VADR VADR VADR VADR
HADR HADR HADR HADR HADR
Command code: (These bits first byte identify command.)
Command recognized upper bits.
Command data: (These bits specify data each command.)
commands through bits data read commands through bits data read command data-9 (DATAFMT) after first byte command read system goes continuous transfer mode reading series following bytes.
Note: high, command state command (system control setup) state. system reset executed from command reset, command register
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LC74772V
COMMAND (System control setup
First byte
Register content Register name State Normal operation System reset Normal operation low, reset executed, high this command will excluded. Command identification code Function Note
VRAM clear operation executed when oscillator Normal operation VRAM clear (All data (hexadecimal)) stopped. oscillator operating state maintained. oscillator stopped. Normal operation Test mode Valid when display off. VRAM write possible when oscillator stopped. Illegal setting. This must always
Note: This register reset (either command reset).
Notes command settings RSTSYS: command reset executed immediately after data read. reset cleared returning high reset this register. reset also cleared this command executed consecutively this register RAMCLR: only erased when display off. This operation executed during display. This operation cannot executed oscillator stopped. Only this command when oscillator operating. This command automatically cleared when erase operation completes. Once erase command been read following time required complete operation. Tclear [µs] 4/fOSC (LC-oscillator) OSCSTP: oscillator stop command stops oscillator connected pins (OSCIN OSCOUT). oscillator stop command only executed when display off. executed display progress. external clock input mode, this command stops acquisition that clock signal. TSTMOD: test mode command executed TESTIN (pin high. This command should used applications normal operation.
5159-7/16
LC74772V
COMMAND (System control setup
First byte
Register content Register name CSYN State POLT HSYNC (pin functions horizontal synchronizing signal input HSYNC (pin functions composite synchronizing signal input system clock positive polarity. system clock negative polarity. MOD1 MOD0 MOD0 Operation oscillator mode Clock input dot) Clock input (NTSC) Clock input (PAL) Valid when CTRL1 (pin high. input clock frequency clock input mode either 4fsc clock frequency. VSYNC (pin must tied ground composite synchronizing signal input mode. This sets clock polarity system operation when used clock input. Command identification code Function Note
MOD1
COMMAND (Input control)
First byte
Register content Register name VSYN POLT HSYN POLT State vertical synchronizing signal input polarity active. vertical synchronizing signal input polarity high active. horizontal synchronizing signal input polarity active. horizontal synchronizing signal input polarity high active. Data transferred 16-bit units. Continuous transfers with upper bits input first then lower bits specifies reverse video display function. specifies system output control. Sets (VSYNC) signal input polarity. Sets (HSYNC) signal input polarity. Command identification code Function Note
DATA
Sets COMMAND data transfer format.
COMMAND-14 Data Valid output mode.
Note: This register reset (either command reset).
5159-8/16
LC74772V
COMMAND (General-purpose port control)
First byte
Register content Register name PORT State System functions normal character border outputs. System functions general-purpose ports. output low. output high. output low. output high. output low. output high. Controls (BLK4) (CHA4) outputs. Sets output when PORTSET Sets output when PORTSET Sets output during normal operation (other than during reset). Command identification code Function Note
COMMAND (Display control: reverse video blinking)
First byte
Register content Register name State BLK1 BLK0 BLK1 BLK0 Operation (PAL: (NTSC: (PAL: (NTSC: blinking period setting duty types. Character display Character display off: Vertical period Characters which attribute specified displayed reverse video. Characters which attribute specified displayed blinking. Command identification code Function Note
Note: This register reset (either command reset).
5159-9/16
LC74772V
COMMAND (Display control: on/off settings each output system)
First byte
Register content Register name DSP4 State DSP2 DSP1 System (RGB) output System output System (RGB) output System output System output System output System output System output (BLK4) (CHA4) output control (BLK3) (CHA3) output control (BLK2) (CHA2) output control Invalid output mode. (BLK1) (CHA1) output control Functions output control output mode. Command identification code Function Note
DSP3
COMMAND (Output control: systems output control settings)
First byte
Register content Register name DSPF SL34 State Sets system output conditions according command described below. Sets system output conditions according command described below. DSPRSG DSPGSG DSPBSG Output selection Signals other than output. output. output. output. output. output. output. output. Note: following registers during reset. DSPRSG DSPGSG DSPBSG result, "All output" state selected during reset. Only system valid 4-system output mode. System cannot when general-purpose output port usage specified. Command identification code Function Note
Note: This register reset (either command reset).
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LC74772V
COMMAND (Output control: background color setting: output mode)
First byte
Register content Register name State BKCR BKCG BKCB BKCR BKCG BKCB Background color Black Blue Green Cyan Magenta Yellow White Background color setting output mode This command invalid 4-system output mode. Invalid when (OUTMOD) high. Valid when (OUTMOD) low. Command identification code Function Note
Second byte
Register content Register name State BKO4F1 BKO4F0 BKO3F1 BKO3F0 BKO2F1 BKO2F0 BKO1F1 BKO1F0 Note: This register reset (either command reset). BKO1 Operation function background border Font size Border Areas other than font (all filled) system output border setting BKO2 Operation function background border Font size (black characters) Border Areas other than font (all filled) system output border setting This command invalid output mode. Invalid when (OUTMOD) low. Valid when (OUTMOD) high. BKO3 Operation function background border Font size (black characters) Border Areas other than font (all filled) system output border setting BKO4 Operation function background border Font size (black characters) Border Areas other than font (all filled) system output border setting Function Note
BKO4
BKO3
BKO2
BKO1
5159-11/16
LC74772V
COMMAND (Display start position setting)
First byte
Register content Register name State Where horizontal period pulse period. vertical display start position then: 2nVPn)
Function
Note
Command identification code
Second byte
Register content Register name State horizontal display start position then: 2nHPn) 12Tc
Function
Note
Where single period oscillator connected pins (OSCIN OSCOUT), period input clock (4fsc input) CTRL1 (pin high. NTSC mode: 7.159 4fsc mode: 7.094 4fsc
Note: This register reset (either command reset).
5159-12/16
LC74772V
COMMAND (Display line control)
First byte
Register content Register name State Sets character size. Sets system display line. Sets system display line. line specified next bits lines line specified next bits lines Controls line switching specified bits second byte. Invalid system output setup mode. Invalid general-purpose port mode. Command identification code Function Note
Second byte
Register content Register name State Clears line (12) setting. Sets line (12). Clears line (11) setting. Sets line (11). Clears line (10) setting. Sets line (10). Clears line setting. Sets line (9). Clears line setting. Sets line (8). Clears line setting. Sets line (7). character size display line setting Character size specification normal Display line specification Character size specification double size Display line specification Function Note
Note: This register reset (either command reset).
5159-13/16
LC74772V
COMMAND (Display write address setting)
First byte
Register content Register name VADR VADR VADR VADR State range display vertical address (line address) setting from (hexadecimal) lines). Values (hexadecimal) larger allowed. Command identification code Function Note
Second byte
Register content Register name HADR HADR HADR HADR HADR State range display horizontal address (character address) setting from (hexadecimal) characters). Values (hexadecimal) larger allowed. Function Note
Note: This register reset (either command reset).
5159-14/16
LC74772V
COMMAND (Display setup data)
First byte
Register content Register name State Blinking character specification Reverse video character specification output specification (system output 4-system output mode) output specification (system output 4-system output mode) output specification (system output 4-system output mode) Command identification code Function Note
Second byte
Register content Register name State Character code setting There characters hexadecimal). hexadecimal handled blank data. Nothing displayed, whatever other conditions hexadecimal functions transfer termination code character-code-only continuous transfers. Continuous transfer mode setting data (DATAFMT) COMMAND Function Note
Note: This register reset (either command reset).
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LC74772V Display Screen Organization display screen consists lines characters each. Thus maximum number characters that displayed characters. display memory address consists line address (VADR0, VADR1, VADR2, VADR3 representing values from (hexadecimal)), column (character position) address (HADR0, HADR1, HADR2, HADR3, HADR4 representing values from (hexadecimal)). Display Screen Organization (Display memory address)
products described contained herein intended surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment like, failure which directly indirectly cause injury, death property loss. Anyone purchasing products described contained herein above-mentioned shall: Accept full responsibility indemnify defend SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees, jointly severally, against claims litigation damages, cost expenses associated with such use: impose responsibility fault negligence which cited such claim litigation SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees jointly severally. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information August, 1997. Specifications information herein subject change without notice. 5159-16/16

LC74772V Camcorder On-Screen Display Overview LC74772V

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