pcf2119x-2 NXP Semiconductors, pcf2119x-2 Datasheet - Page 55

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

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Table 19 Initialization by instruction, 4-bit interface; not applicable for I
power-on or unknown state
Wait 2 ms after external reset has been applied
Wait 2 ms
Wait 40 s
Initialization ends
RS
RS
RS
RS
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
0
0
0
0
DB7
DB7
DB7
DB7
0
0
0
0
0
0
0
1
0
0
0
0
STEP
DB6
DB6
DB6
DB6
M
0
0
0
0
0
0
0
0
0
0
1
DB5
DB5
DB5
DB5
I/D
1
1
1
1
1
0
0
0
0
0
0
DB4
DB4
DB4
DB4
H
1
1
1
0
0
0
0
0
1
0
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 (set interface to 4 bits long)
interface is 8 bits long
function set (interface is 4 bits long)
specify number of display lines
display off
clear display
entry mode set
2
C-bus operation
DESCRIPTION