LC74721, 74721M
COMMAND1: second byte
DA0 to
DA7
0
1
2
3
4
5
6
7
Register name
C0
C1
C2
C3
C4
C5
at
Status
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
Register Contents
Function
Character code 0 to 3FH
Character attribute OFF
Character attribute ON
Note
On system reset with RST, the status of all registers is set to 0.
Remarks
COMMAND2: Vertical Display Position and Character Size Setting Command
COMMAND2: first byte
DA0 to
DA7
Register name
Status
Register Contents
Function
Remarks
0
VS10
0
VS11
VS10
1
0
0
0
1
0
1
VS11
1
1
0
1
1
Height
1H/pixel
2H/pixel
3H/pixel
1H/pixel
First row vertical character size
2
VS20
0
VS21
VS20
1
0
0
0
3
VS21
1
0
1
1
0
1
1
Height
1H/pixel
2H/pixel
3H/pixel
1H/pixel
4
0
5
1
COMMAND2 identification code
6
0
7
1
Second row vertical character size
No.4359–7/12