HD66730 Datasheet, PDF (78/131 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display

Table 18 Instruction Registers
HD66730/HD66731
Reg. Index
No. (Hex) Register R/W RS
IR — Index 0 0
(IDR)
SR — Status 1 0
(STR)
R0 0
Entry 0 1
mode
(EMR)
R1 1
Function 0 1
set
(FSR)
R2 2
Cursor 0 1
control
(CCR)
R3 3
Display 0 1
control 1
(DCR1)
R4 4
R5 5
R6 6
R7 7
Display 0 1
control 2
(DCR2)
Scroll 0 1
control 1
(SCR1)
Scroll 0 1
control 2
(SCR2)
Scroll 0 1
control 3
(SCR3)
Code
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Description
Execution
Clock
Cycle
— — — — ID3 ID2 ID1 ID0 Designates the
12
register number of the
instruction register to
access. ID = 0000: R0
to 1001: R9
BF NF1 NF0 —
LF3 LF2 LF1 LF0 Indicates the busy flag 0
(BF), display read line
position (NF1/0),
display read raster-
row position(NL0 to
NL3).
0 00
0
0 I/D RM1 RM0 Designates RAM
12
address in
crementation or
decrementation (I/D)
and RAM selection
(RM1/0).
0 BST EXT2 EXT1 DT1 DT0 0 DCL Clears display (DCL) DCL = 1:
and initializes the
492
DDRAM address.
Other: 12
Selects duty drive
ratio(DT1/0), enables
extension driver
(EXT2/1) and sets the
booster operation on.
0 00
0
CHM C CM1 CM0 Designates cursor-on 12
(C) and cursor display
mode(CM1/0).
Executes cursor home
(CHM) instruction.
0 00
0
0 ST DC DS Designates standby 12
mode (ST), character
display on (DC), and
segment display on
(DS).
0 0 NC1 NC0 0 0 NL1 NL0 Sets the number of 12
display
characters(NC1/0) and
display lines(NL1/0).
0 SN1 SN0 0
SL3 SL2 SL1 SL0 Sets the display start 12
line (SN1/0) and start
raster-row (ST0 to
ST3).
0 0 PS1 PS0 SE4 SE3 SE2 SE1 Designates partial
12
scroll columns (PS1/0)
and scroll display line
enable(SE1 to SE4).
0 0 SQ5 SQ4 SQ3 SQ2 SQ1 SQ0 Sets the number of 12
dots to be scrolled
(SQR0 to SQR5).
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