lc74776m Sanyo Semiconductor Corporation, lc74776m Datasheet - Page 11

• Manufacturer Part Number: lc74776m
• Description: Vps/pdc Video On-screen Display
• Manufacturer: Sanyo Semiconductor Corporation

• Second byte
COMMAND2: Vertical display start position and vertical character size setup command
• Second byte
Note: All registers are set to 0 when the LC74776/M is reset by the RST pin.
Note: All registers are set to 0 when the LC74776/M is reset by the RST pin.
• First byte
DA 0 to 7
DA 0 to 7
DA 0 to 7
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Register
Register
Register
(MSB)
(LSB)
VS21
VS20
VS11
VS10
VP3
VP2
VP1
VP0
VP5
VP4
FS
c6
c5
c4
c3
c2
c1
c0
at
–
–
–
–
–
State
State
State
1
0
1
0
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
If VS is the vertical display start position then:
VS =
H: The horizontal synchronization pulse period
Character attribute off
Character attribute on
Character code (00 to FF hexadecimal)
(FE
(FF
Command 2 identification code.
Vertical display start position and the vertical character
size setup.
Second byte identification bit
Crystal oscillator frequency: 2fsc
Crystal oscillator frequency: 4fsc
VS21
VS11
= 20H (525H systems)
= 25H (625H systems)
HEX
HEX
0
1
0
1
+H
: Transparent space character)
: Space character)
VS20
VS10
2
n=0
5
LC74776, 74776M
2 VP
n
Contents
Contents
Contents
Function
Function
Function
n
1H/dot
3H/dot
1H/dot
3H/dot
0
Character display area
0
2H/dot
1H/dot
2H/dot
1H/dot
1
1
Second line vertical character size
First line vertical character size
The vertical display start position is set by the
6 bits VP0 to VP5.
The weight of bit 1 is 2H.
Notes
Notes
Notes
No. 6018-11/35