S6A0032 Datasheet, PDF (19/39 Pages) Samsung semiconductor – 16 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD

16 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD PRELIMINARY SPEC. VER. 0.5
S6A0032
Clear Display
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
0
0
0
0
0
0
0
0
1
Clear all the display data by writing "20H" (space code of CGROM) to all the DDRAM address, and set the DDRAM
address to "00H" into AC (address counter). For this instruction, the CGROM address "20H" have to set space code.
If the display position has shifted then it returns to the original positions. Namely, when display data is shifted and
cursor or blinking is displayed, bring the cursor to the left edge on first line of the display. It makes entry mode to
increment (I/D = "High").
Return Home
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
0
0
0
0
0
0
0
1
-
Return Home instruction field makes cursor return home. DDRAM address is set to 00h from AC and the cursor
returns to 00h position. The contents of DDRAM are not changed.
Entry Mode Set
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
0
0
0
0
0
0
0
1
Set the moving direction of cursor and display after data writing or reading instruction.
DB1
I/D
DB0
SH
I/D: Increment / decrement of DDRAM / CGRAM address (cursor or blink)
After DDRAM / CGRAM data write/read operation, DDRAM/CGRAM address is increased (I/D = "High") or
decreased (I/D = "Low") by 1. So in case of DDRAM data transfer operation and cursor or blink is turned on, cursor
or blink moves to right (I/D = "High") or left (I/D = "Low"), but in CGRAM data transfer operation, cursor or blink does
not move.
SH: Shift of entire display
When DDRAM read (CGRAM read/write) operation or SH = "Low", entire display is not shift. Only when SH = "High"
and DDRAM write operation, entire display is shift according to I/D value (I/D = "1": shift left, I/D = "0": shift right).
Display ON / OFF Control
RS
R/W
DB7
DB6
DB5
0
0
0
0
0
Control display / cursor/blink ON / OFF 1 bit register
DB4
0
DB3
1
DB2
D
DB1
C
DB0
B
D: Display ON / OFF Control Bit
When D = "High", entire display is turned ON.
When D = "Low", entire display is turned OFF, but display data is remained in DDRAM.
C: Cursor ON / OFF Control Bit
When C = "High", cursor is turned ON.
When C = "Low", cursor is disappeared in current display, but I/D register remains its data.
B: Cursor Blink ON / OFF Control Bit
When B = "High", cursor blink is ON, that performs alternate between all high data (black pattern) and display
character at the cursor position.
When B = "Low", blink is OFF.
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