pcf2119x-2 NXP Semiconductors, pcf2119x-2 Datasheet - Page 54

• Manufacturer Part Number: pcf2119x-2
• Description: Controllers/drivers
• Manufacturer: NXP Semiconductors

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Table 18 Initialization by instruction, 8-bit interface (note 1)
Note
1. X = don’t care.
power-on or unknown state
wait 2 ms after external reset has been applied
RS
0
wait 2 ms
RS
0
wait more than 40 s
RS
0
RS
0
0
0
0
Initialization ends
R/W
0
R/W
0
R/W
0
R/W
0
0
0
0
DB7
0
DB7
0
DB7
0
DB7
0
0
0
0
DB6
0
DB6
0
DB6
0
DB6
0
0
0
0
DB5
1
DB5
1
DB5
1
DB5
1
0
0
0
STEP
DB4
1
DB4
1
DB4
1
DB4
1
0
0
0
DB3
X
DB3
X
DB3
X
DB3
0
1
0
0
DB2
X
DB2
X
DB2
X
DB2
M
0
0
1
DB1
X
DB1
X
DB1
X
DB1
0
0
0
I/D
DB0
X
DB0
X
DB0
X
DB0
H
0
1
S
BF cannot be checked before this instruction
function set (interface is 8 bits long)
BF cannot be checked before this instruction
function set (interface is 8 bits long)
BF cannot be checked before this 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 instructions is the specified instruction time
(see Table 3)
function set (interface is 8 bits long); specify the number of display lines
display off
clear display
entry mode set
DESCRIPTION