RCM2228R-A 데이터 시트보기 (PDF) - ROHM Semiconductor
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RCM2228R-A Datasheet PDF : 8 Pages
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Liquid Crystal Displays
RCM2228R-A / B
zInstruction
Instruction
Display Clear
Cursor Home
Entry Mode Set
Display ON / OFF
Control
Cursor or Display Shift
Function Set
Instruction Code
RS RW D7 D6 D5 D4 D3 D2 D1 D0
Description
0
0
0
0
0
0
0
0
0
1
Clears entire display and sets DDRAM
address 0 in address counter.
Sets DDRAM address 0 in the address
0
0
0
0
0
0
0
0
1
∗
counter Shifted display returns to the
original state.
DDRAM data does not change.
I / D : Specifies cursor / display shift
(I / D=1 : +1 I / D=0 : −1)
S : Executes the shift operation
0 0 0 0 0 0 0 1 I/D S
(S=1: shift S=0 : no shift)
These operations are performed during data
write and read.
D: All display ON / OFF (1: ON , 0: OFF)
C: Cursor ON / OFF (1: ON , 0: OFF)
0 0 0 0 0 0 1 D C B B: Cursor position blink
ON / OFF (1: ON , 0: OFF)
Shifts the cursor or display without changing
DDRAM data
0 0 0 0 0 1 S/C R/L ∗ ∗ S / C : (1: Display shift, 0: Cursor shift)
R / L : Specifies the shift direction
(1: Right shift 0: Left shift)
Sets function for the internal operation
DL : (1:8bit , 0:4bit)
0 0 0 0 1 DL N ∗ ∗ ∗ N : (1:2line , 0:1line)
Time
(MAX)
1.08ms
1.08ms
26.3µs
26.3µs
26.3µs
26.3µs
CGRAM Address set
0 0 0 1 A5 A4 A3 A2 A1 A0 Assigns the CGRAM address
DDRAM Address set
Busy flag
Address counter read
Data write
0 0 1 A6 A5 A4 A3 A2 A1 A0 Assigns the DDRAM address
BF: Reads the internal operation state
0 1 BF A6 A5 A4 A3 A2 A1 A0 (1: In operation, 0: Completed operation)
AC: Reads the address counter value.
1 0 D7 D6 D5 D4 D3 D2 D1 D0 Writes data into DD / CGRAM
Data read
1 1 D7 D6 D5 D4 D3 D2 D1 D0 Read data from DD / CGRAM
Note: Refer to Instruction table for the list of each instruction execution time.
26.3µs
26.3µs
0µs
26.3µs
26.3µs
( ∗ : don't care )
5/7
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