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LC74788JM View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
View to exact match
LC74788JM
SANYO
SANYO -> Panasonic SANYO
LC74788JM Datasheet PDF : 23 Pages
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LC74788, 74788M, 74788JM
COMMAND2: Vertical display start position and vertical character size setup command
• First byte
DA
Register
0 to 7
7
6
5
4
3
VS21
2
VS20
1
VS11
0
VS10
Contents
State
Function
1
0 Command 2 identification code
1 Sets the vertical display start position and the vertical character size
0
0
1
VS21
VS20
0
0
1
1
0
1H/dot
3H/dot
1
2H/dot
1H/dot
0
1
VS11
VS10
0
0
1
1
0
1H/dot
3H/dot
1
2H/dot
1H/dot
Notes
Second line vertical character size
First line vertical character size
• Second byte
DA
0 to 7
7
6
5
4
3
2
1
0
Register
FS
VP5
(MSB)
VP4
VP3
VP2
VP1
VP0
(LSB)
Contents
State
Function
0 Second byte identification bit
0 Crystal oscillator frequency: 2fsc
1 Crystal oscillator frequency: 4fsc
0 If VS is the vertical display start position then:
5
1 VS = α + H × (2Σ 2n VPn)
n=0
0 H: the horizontal synchronization pulse period
1 α = 20 H (in 525-line systems)
0
= 25 H (in 625-line systems)
1
0
1
0
1
Character
0
display area
1
Note: All registers are set to 0 when the LC74788/M/JM is reset by the RST pin.
Notes
The vertical display start position is set by the 6 bits
VP0 to VP5.
The weight of bit 1 is 2H.
No. 5731-11/23
 

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