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PC0801ARS-F Datenblatt(PDF) 40 Page - Powertip Technology

Teilenummer PC0801ARS-F
Bauteilbeschribung  OUTLINE DIMENSION & BLOCK DIAGRAM
PDF  65 Pages
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PC0801ARS-F Datenblatt(HTML) 40 Page - Powertip Technology

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ST7066U
V2.0
2001/03/01
17/42
!"
Instructions
There are four categories of instructions that:
#" Designate ST7066U functions, such as display format, data length, etc.
#" Set internal RAM addresses
#" Perform data transfer with internal RAM
#" Others
Instruction Table:
Instruction Code
Instruction
RS
R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Description
Description
Time
(270KHz)
Clear
Display
0
0
0
0
0
0
0
0
0
1
Write "20H" to DDRAM. and
set DDRAM address to
"00H" from AC
1.52 ms
Return
Home
0
0
0
0
0
0
0
0
1
x
Set DDRAM address to
"00H" from AC and return
cursor to its original position
if shifted. The contents of
DDRAM are not changed.
1.52 ms
Entry Mode
Set
0
0
0
0
0
0
0
1
I/D
S
Sets cursor move direction
and specifies display shift.
These operations are
performed during data write
and read.
37 us
Display
ON/OFF
0
0
0
0
0
0
1
D
C
B
D=1:entire display on
C=1:cursor on
B=1:cursor position on
37 us
Cursor or
Display
Shift
0
0
0
0
0
1
S/C
R/L
x
x
Set cursor moving and
display shift control bit, and
the direction, without
changing DDRAM data.
37 us
Function
Set
0
0
0
0
1
DL
N
F
x
x
DL:interface data is 8/4 bits
N:number of line is 2/1
F:font size is 5x11/5x8
37 us
Set CGRAM
address
0
0
0
1
AC5
AC4
AC3
AC2
AC1
AC0
Set CGRAM address in
address counter
37 us
Set DDRAM
address
0
0
1
AC6
AC5
AC4
AC3
AC2
AC1
AC0
Set DDRAM address in
address counter
37 us
Read Busy
flag and
address
0
1
BF
AC6
AC5
AC4
AC3
AC2
AC1
AC0
Whether during internal
operation or not can be
known by reading BF. The
contents of address counter
can also be read.
0 us
Write data
to RAM
1
0
D7
D6
D5
D4
D3
D2
D1
D0
Write data into internal
RAM
(DDRAM/CGRAM)
37 us
Read data
from RAM
1
1
D7
D6
D5
D4
D3
D2
D1
D0
Read data from internal
RAM
(DDRAM/CGRAM)
37 us
Note:
Be sure the ST7066U is not in the busy state (BF = 0) before sending an instruction from the MPU to the
ST7066U. If an instruction is sent without checking the busy flag, the time between the first instruction and next
instruction will take much longer than the instruction time itself. Refer to Instruction Table for the list of each
instruction execution time.



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