lc74772v Sanyo Semiconductor Corporation, lc74772v Datasheet - Page 10

• Manufacturer Part Number: lc74772v
• Description: Camcorder On-screen Display Lsi
• Manufacturer: Sanyo Semiconductor Corporation

First byte
First byte
Note: This register is set to 0 on a reset (either by the RST pin or by a command reset).
DA0 to DA7
DA0 to DA7
COMMAND 5 (Display control: on/off settings for each output system)
COMMAND 6 (Output control: systems 3 and 4 output control settings)
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Register name
Register name
DSPF
DSP4
DSP3
DSP2
DSP1
SL34
RSG
GSG
DSP
DSP
DSP
BSG
—
—
—
—
—
—
—
—
State
State
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
0
0
1
0
1
0
1
0
1
Command 5 identification code
System 4 output off
System 4 output on
System 3 output off
System 3 output on
System 2 output off
System 2 output on
System 1 (RGB) output off
System 1 (RGB) output on
Command 6 identification code
Sets the system 3 output conditions according to the command
described below.
Sets the system 4 output conditions according to the command
described below.
DSPRSG DSPGSG DSPBSG
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
Register content
Register content
LC74772V
0
1
0
1
0
1
0
1
Function
Function
Signals other than R, G,
B are output.
B is output.
G is output.
G and B are output.
R is output.
R and B are output.
R and G are output.
All of R, G, B are output.
Output selection
Pin 10 (BLK4) and pin 11 (CHA4) output
control
Pin 14 (BLK3) and pin 15 (CHA3) output
control
Pin 16 (BLK2) and pin 17 (CHA2) output
control
Invalid in RGB output mode.
Pin 18 (BLK1) and pin 19 (CHA1) output
control
Functions as the RGB output control in
RGB output mode.
Only system 4 is valid in 4-system
output mode. System 4 cannot be set
when the general-purpose output port
usage is specified.
Note: The following registers are set to
1 during a reset.
DSPRSG
DSPGSG
DSPBSG
As a result, the “All of R, G, B are
output” state is selected during a
reset.
Note
Note
No. 5159-10/17