lc74763m Sanyo Semiconductor Corporation, lc74763m Datasheet - Page 11

• Manufacturer Part Number: lc74763m
• Description: Video On-screen Display
• Manufacturer: Sanyo Semiconductor Corporation

Second byte
Note: When the chip is reset by the RST pin, the register states (bits) are all cleared to 0.
First byte
DA0 to DA7
DA0 to DA7
COMMAND6: Display Control Setting Command 3
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Register name
Register name
CV
XTAL
MOD3
MOD2
MOD1
MOD0
CHAL
RSL1
RSL0
TST
BKL
—
—
—
—
—
outmt
sel
State
State
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
1
0
0
1
0
1
0
1
0
1
Second byte identification code
Normal operation
Test mode
Sets the character intensity level to about 85 IRE (bright white).
Sets the character intensity level to about 72 IRE (white with a
touch of grey).
Sets the blanking intensity level to about 3 IRE (a deep black
as a frame level).
Sets the blanking intensity level to about 13 IRE (a dark grey
as a frame level).
Normal CV
CV
Selects XTAL1
Selects XTAL2
The command 6 identification code:
sets display control parameters.
Sets Fsc to 3.58 MHz.
Sets Fsc to 4.43 MHz.
Sets the color mode to NTSC.
Sets the color mode to PAL.
Sets the number of scan lines to 525 lines.
Sets the number of scan lines to 625 lines.
Sets the mode to a mode other than SECAM.
Sets the mode to SECAM mode.
RSL1
out
0
0
1
1
pedestal level output
out
output
RSL0
LC74763, 74763M
0
1
0
1
Register content
Register content
Function
About 15 IRE
About 30 IRE
About 45 IRE
About 55 IRE
Function
Intensity level
About 60 IRE
About 60 IRE
About 60 IRE
About 65 IRE
Amplitude
The logical or of this bit and the scan
line count switching input pin (pin 12) is
used.
The logical or of this bit and the mode
switching input pin (pin 11) is used.
Test mode should not be used. This bit
should always be zero.
Switches the character intensity level.
Switches the blanking intensity level.
Switches the background intensity level.
Switches the oscillator circuit
The logical or of this bit and the Fsc
switching input pin (pin 14) is used.
The logical or of this bit and the color
mode switching input pin (pin 13) is
used.
Note
Note
No. 5039-11/19