PCF2114 查看數據表（PDF） - Philips Electronics
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PCF2114 Datasheet PDF : 64 Pages
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Table 10 Initialization by instruction, 4-bit interface. Not applicable for I2C-bus operation
STEP
power-on or unknown state
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wait 2 ms after VDD rises above VPOR
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RS R/W
DB7 DB6 DB5
0
0
0
0
1
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wait 2 ms
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RS R/W
DB7 DB6 DB5
0
0
0
0
1
wait 40 µs
RS R/W
|
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DB7 DB6 DB5
0
0
0
0
1
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RS R/W
DB7 DB6 DB5
0
0
0
0
1
0
0
0
0
1
0
0
N
M
G
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
I/D
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Initialization ends
DESCRIPTION
DB4 BF cannot be checked before this instruction.
1 Function set (interface is 8-bits long).
DB4 BF cannot be checked before this instruction.
1 Function set (interface is 8-bits long).
DB4 BF cannot be checked before this instruction.
1 Function set (interface is 8-bits long).
BF can be checked after the following instructions. When BF is not checked, the waiting time
between instructions is the specified instruction time. (See Table 3).
DB4 Function set (set interface to 4-bits long).
0 Interface is 8-bits long.
0 Function set (interface is 4-bits long).
0 Specify number of display lines and voltage generator characteristic.
0
0 Display off.
0
Clear display.
1
0
Entry mode set.
S
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