RW1068 ETC-unknow, RW1068 Datasheet - Page 24

• Manufacturer Part Number: RW1068
• Description: 26com/84seg Driver & Controller For Dot Matrix Lcd
• Manufacturer: ETC-unknow

Clear all the display data by writing "20H" (space code) to all DDRAM address, and set DDRAM
address to "00H" into AC (address counter). Return cursor to the original status, namely, bring the
cursor to the left edge on first line of the display. Make entry mode increment (I/D = "1").
Return Home is cursor return home instruction. Set DDRAM address to "00H" into the address counter.
Return cursor to its original site and return display to its original status, if shifted. Contents of DDRAM
does not change.
Power down mode enable bit set instruction.
PD = “High”, it makes RW1068 suppress current consumption except the current needed for data
storage by executing next three functions.
1. Makes the output value of all the COM / SEG ports VSS.
2. Disable voltage converter to remove the current through the divide resistor of power supply.
Set the moving direction of cursor and display.
I/D: Increment/decrement of DDRAM address (cursor or blink)
CGRAM/SEGRAM operates the same as DDRAM, when read from or write to CGRAM/SEGRAM.
When S = "High", after DDRAM write, the display of enabled line by DS1 – DS2 bits in the shift enable
instruction is shifted to the right (I/D = "0") or to the left (I/D = "1"). But it will seem as if the cursor does
not move. When S = "Low", or DDRAM read, or CGRAM/SEGRAM read/write operation, shift of
display like this function is not performed.
RS
RS
RS
This instruction can be used as power sleep mode.
When PD = “Low”, power down mode becomes disabled.
RS
0
0
0
0
When I/D = "High", cursor/blink moves to right and DDRAM address is increased by 1.
When I/D = "Low", cursor/blink moves to left and DDRAM address is decreased by 1.
Display Clear
Return Home: (RE = 0)
Power Down Mode Set: (RE = 1)
Entry Mode Set: (RE = 0)
R/W
R/W
R/W
R/W
0
0
0
0
DB7
DB7
DB7
DB7
0
0
0
0
DB6
DB6
DB6
DB6
26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
0
0
0
0
RockWorks Technology Corp.
DB5
DB5
DB5
DB5
0
0
0
0
24
DB4
DB4
DB4
DB4
0
0
0
0
DB3
DB3
DB3
DB3
0
0
0
0
DB2
DB2
DB2
DB2
0
0
0
1
DB1
DB1
DB1
DB1
RW1068
I/D
0
1
1
DB0
DB0
DB0
DB0
PD
S
1
X