ST7070
Set display data length
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Code 0 0 1 L6 L5 L4 L3 L2 L1 L0
L6
L5
L4
L3
L2
L1
L0
Data length
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
2
…
…
…
…
…
…
….
…
1
0
0
1
1
1
0
79
1
0
0
1
1
1
1
80
Only in 3line-SPI interface will use the register to set the number of display data(Max=4F).
To write data to DDRAM , send Data Direction Command in 3-pin SPI . Data is latched at the rising edge of
SCLK . And the DDRAM column address pointer will be increased by one automatically.
V1.4
22/51
2009/04/29