LC74731 Sanyo Semicon Device, LC74731 Datasheet - Page 15

• Manufacturer Part Number: LC74731
• Description: On-Screen Display Controller
• Manufacturer: Sanyo Semicon Device

COMMAND21 (Horizontal display start position setup command)
• First byte
• Second byte
Note that all registers are set to 0 when these ICs are reset by the RST pin.
DA0 to 7
DA0 to 7
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Register
Register
(MSB)
(LSB)
HP6
HP5
HP4
HP3
HP2
HP1
HP0
—
—
—
—
—
—
—
—
—
State
State
1
0
1
0
0
1
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Command 2 identification code
Horizontal display position setup and horizontal direction
character size settings
Extended command 1 identification code
Second byte identification bit
If HS is the horizontal start position then:
Tc: Period of the oscillator connected to OSCIN/OSCOUT in
HS =Tc
operating mode.
( 2 ∑ 2
n=0
6
n
H P n )
Content
Content
LC74731W,74732W
Function
Function
The horizontal display start position is set by the 7
bits HP0 to HP6.
The weight of bit 1 is 2Tc.
Notes
Notes
No. 6526-15/38