S6B33A2 Datasheet, PDF (41/67 Pages) Samsung semiconductor – 128 RGB Segment & 129 Common Driver For 4,096 Color STN LCD

S6B33A2 PRELIMINARY VER 1.3 128 RGB SEGMENT & 129 COMMON DRIVER FOR 4,096 COLOR STN LCD
Entry Mode Set (40H)
Setting internal function mode.
D/I
/WR
/RD
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
HL
X/Y RMW
HL: Exchange higher and lower byte only for “Display Data Write/Read” in 256 color & 16-bit data bus .
HL = 0 : Exchange status(initial status)
HL = 1 : Not exchange status
X/Y: Memory address counter mode setting
X/Y = 0: Y address counter mode (Initial status)
X/Y = 1: X address counter mode (Don’t use in 256 color & 16bit data bus mode)
RMW: Read modify write mode ON/OFF select
RMW = 0: Read modify write OFF (Initial status)
RMW = 1: Read modify write ON. When this mode is on, X(Y) address of on-chip display RAM is increment
not in reading display data but in writing display data.
X Address Area Set (42H)
This instruction and parameter set up the X address areas of the on-chip display data RAM.
D/I
/WR
/RD
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
1
0
0
0
0
1
0
0
0
1
0
X start address set (Initial Status = 00H)
0
X end address set (Initial Status = 7FH)
The current X address of the on-chip display data RAM is the X start address by setting this instruction. In X
address count mode (X/Y = “H”), the X address is increased from X start address to X end address. When X
address is equal to the X end address, the Y address is increased by 1 and the X address returns to X start
address. The X start and X end addresses must be set as a pair and X start address must be less than X end
address.
Address Area Set (43H)
This instruction and parameter set up the Y address areas of the on-chip display data RAM.
D/I
/WR
/RD
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
1
0
0
0
0
1
1
0
0
1
0
Y start address set (Initial Status = 00H)
0
Y end address set (Initial Status = 7FH)
The current Y address of the on-chip display data RAM is the Y start address by setting this instruction. In
Y address count mode (X/Y = “L”), the Y address is increased from Y start address to Y end address. When
Y address is equal to the Y end address, the X address is increased by 1 and the Y address returns to Y start
address. The Y start and Y end address must be set as a pair and Y start address must be less than Y end
address.
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