RW1068 ETC-unknow, RW1068 Datasheet - Page 28

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

(RE = 0)
IF :
RE : Extended function registers enable bit
DC : Display shift enable selection bit
REV: Reverse enable bit
(RE = 1)
IF : Interface data length control bit
RE: Extended function registers enable bit
BE: CGRAM/SEGRAM data blink enable bit If BE is "High", It makes user font of CGRAM and
RS
RS
0
0
When IF = "High", it means 8-bit bus mode with MPU.
When IF = "Low", it means 4-bit bus mode with MPU. So to speak, IF is a signal to select 8-bit or
4-bit bus mode.
When 4-bit bus mode, it needs to transfer 4-bit data by two times.
When RE = "High", extended function set registers, SEGRAM address set registers, BID bit, DC
bits of shift enable instruction and BE bits of function set register can be accessed.
segment of SEGRAM blink. The quantity of blink is assigned the highest 2 bit of
CGRAM/SEGRAM.
Function Set
When IF = "High", it means 8-bit bus mode with MPU.
When IF = "Low", it means 4-bit bus mode with MPU. So to speak ,IF is a signal to select 8-bit or
4-bit bus mode.
When 4-bit bus mode, it needs to transfer 4-bit data by two times.
At this instruction, RE must be "Low".
When DC = ”High”, enable display shift per line.
When DC =”Low”, enable the selection of code bank.
When REV = “High”, all the display data are reversed. i.e., all the white dots become black and
black dots become white.
When REV =”Low”, the display mode set normal display.
Interface data length control bit
R/W
R/W
0
0
DB7
DB7
0
0
DB6
DB6
26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
0
0
RockWorks Technology Corp.
DB5
DB5
1
1
28
DB4
DB4
IF
IF
DB3
DB3
X
X
RE(0)
RE(1)
DB2
DB2
DB1
DB1
RW1068
DC
BE
DB0
DB0
REV
0