SLS System Logic Semiconductor
SL20T0081
INSTRUCTION DESCRIPTION
Table 14. Instruction Table
Instruction
Instruction Code
RS RD WR D7 D6 D5 D4 D3 D2 D1 D0
Function
Display ON/OFF
010
1
0
1
0
1
1
1
DON
DON = 1 : LCD display ON
DON = 0 : LCD display OFF
Display start line set
010
0
1
SL5 SL4 SL3 SL2 SL1 SL0
Set the Display Data RAM address
that corresponds COM0 output
Display start line set
0101 0 1 0 1 0 0
1
Set the Display Data RAM address
that corresponds COM0 output
(double byte instruction) 0 1 0 x SL6 SL5 SL4 SL3 SL2 SL1 SL0 for 1/81 duty (7bits).
Display start line reset 0 1 0 1 0 1 0 1 0 0 0 Reset the Display Start line.
N-line inversion
010 1
0
1
0
1
0
1
1
Set the Display Data RAM address
that corresponds COM0 output
(double byte instruction) 0 1 0 x x x NL4 NL3 NL2 NL1 NL0 for 1/81 duty (7bits).
N-line inversion reset
010 1
0
1
0
1
0
1
0
Reset the N-line inversion.
(N-line inversion disable)
Set page address
0 1 0 1 0 1 1 P3 P2 P1 P0 Set the page address
Set column address
MSB
Set column address
LSB
Read status
0 1 0 0 0 0 1 A7 A6 A5 A4 Set the column address MSB
0 1 0 0 0 0 0 A3 A2 A1 A0 Set the column address LSB
0
0
1
BUSY ONOFF
ADC
RESET
0
0
0
0 Read device internal status
Write display data
1 1 0 D7 D6 D5 D4 D3 D2 D1 D0 Write data into display RAM
Read display data
1 0 1 D7 D6 D5 D4 D3 D2 D1 D0 Read data from display RAM
ADC set
Reverse display
ON/OFF
All segments
ON/OFF
Set SEG output direction
0 1 0 1 0 1 0 0 0 0 ADC ADC = 0 : SEG0 SEG131
ADC = 1 : SEG131 SEG0
Set display mode
0 1 0 1 0 1 0 0 1 1 REV REV = 0 : normal display
REV = 1 : reverse display
Set display mode
0 1 0 1 0 1 0 0 1 0 AON AON = 0 : normal display
AON = 1 : display all segments ON
LCD bias select
0 1 0 1 0 1 0 0 0 1 BIAS Select LCD bias
Set read-modify-write
(RMW) mode
010 1
1
1
0
0
0
0
0 Read-modify-write mode enable
Clear read-modify-write
(RMW) mode
0
1
0
1
1
1
0
1
1
1
0 Read-modify-write mode disable
Reset
0 1 0 1 1 1 0 0 0 1 0 Initialize the device
Common output direction
(COD) set
0
1
0
1
1
0
0 COD x
x
x
Set COM output direction
COD = 0 : COM0 COM63
COD = 1 : COM63 COM0
LCD power setup
BE : voltage booster enable
0 1 0 0 0 1 0 1 BE RE FE RE : voltage regulator enable
FE : voltage follower enable
X:Don’t care