lc74776m Sanyo Semiconductor Corporation, lc74776m Datasheet - Page 12
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lc74776m
Manufacturer Part Number
lc74776m
Description
Vps/pdc Video On-screen Display
Manufacturer
Sanyo Semiconductor Corporation
Datasheet
1.LC74776M.pdf
(35 pages)
- Current page: 12 of 35
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COMMAND3 (Horizontal display start position and horizontal size setup command)
• First byte
• Second byte
Note: All registers are set to 0 when the LC74776/M is reset by the RST pin.
DA 0 to 7
DA 0 to 7
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Register
Register
(MSB)
(LSB)
HS21
HS20
HS11
HS10
HP5
HP4
HP3
HP2
HP1
HP0
LC
–
–
–
–
–
State
State
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
0
1
1
0
1
0
1
0
1
0
1
If HS is the horizontal start position then:
HS = Tc
Tc: Period of the oscillator connected to OSCIN/OSCOUT
Second byte identification bit
Use the LC oscillator as the dot clock
Use the crystal oscillator as the dot clock
Command 3 identification code.
Horizontal display start position and the horizontal
character size setup.
VS21
VS11
in operating mode.
0
1
0
1
VS20
VS10
2
n=0
5
2 HP
LC74776, 74776M
n
n
Contents
Contents
Function
Function
1Tc/dot
3Tc/dot
1Tc/dot
3Tc/dot
0
0
2Tc/dot
1Tc/dot
2Tc/dot
1Tc/dot
1
1
Selects the dot clock used for character
display in the horizontal direction.
The horizontal display start position is set
by the 6 bits HP0 to HP5.
The weight of bit 1 is 2Tc.
Second line horizontal character size
First line horizontal character size
Notes
Notes
No. 6018-12/35
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