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3.7
Initialization via Instruction
8-BIT INTERFACE
The following procedures are followed during the initialization of an 8-bit MPU
Power ON
WAIT FOR MORE THAN
15ms AFTER THE VDD RISES TO 4.5V
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
BF CANNOT BE CHECKED BEFORE THIS
0
0
0
0
1
1
*
*
*
*
INSTRUCTION.
FUNCTION SET (INTERFACE IS 8 BITS
WAIT FOR MORE THAN 4.1ms
LONG)
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
BF CANNOT BE CHECKED BEFORE THIS
0
0
0
0
1
1
*
*
*
*
INSTRUCTION.
FUNCTION SET (INTERFACE IS 8 BITS
WAIT FOR MORE THAN 100 us
LONG)
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
BF CANNOT BE CHECKED BEFORE THIS
0
0
0
0
1
1
*
*
*
*
INSTRUCTION.
FUNCTION SET (INTERFACE IS 8 BITS
LONG)
BF CAN BE CHECKED AFTER THE
FOLLOWING INSTRUCTIONS. WHEN BF IS
NOT CHECKED, THE WAITING TIME
BETWEEN THE INSTRUCTIONS IS
LONGER THAN THE EXECUTION TIME OF
THE INSTRUCTION
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
END OF INITIALIZATION
0
0
0
0
1
1
N
F
*
*
FUNCTION SET (INTERFACE IS 8 BITS
0
0
0
0
0
0
1
0
0
0
LONG) SPECIFY THE NUMBER OF
0
0
0
0
0
0
0
0
0
1
DISPLAY LINES AND CHARACTER FONT)
0
0
0
0
0
0
0
1
I/D
S
THE NUMBER OF CHARACTER LINES AND
CHARACTER FONT CANNOT BE
CHANGED AFTER THIS POINT.
DISPLAY OFF
END OF INITIALIZATION
DISPLAY CLEAR
ENTRY MODE
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