pcf2119x-2 NXP Semiconductors, pcf2119x-2 Datasheet - Page 49

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

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Table 16 8-bit operation, 2-line display example; using external reset
14 to 19
6 to 10
STEP
12
13
11
1
2
3
4
5
power supply on (PCF2119x is initialized by the external
reset)
function set
RS
0
display on/off control
0
entry mode set
0
‘write data’ to CGRAM/DDRAM
1
‘write data’ to CGRAM/DDRAM
1
set DDRAM address
0
‘write data’ to CGRAM/ DDRAM
1
R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
1
1
INTRODUCTION
1
0
0
0
0
0
0
1
0
0
1
1
0
0
0
1
0
0
0
0
1
1
1
1
0
0
0
1
0
1
1
0
1
0
0
0
0
0
0
1
0
1
_
_
P_
PHILIPS_
PHILIPS
_
PHILIPS
M_
DISPLAY
|
|
|
|
|
|
initialized; no display appears
sets to 8-bit operation; selects 2-line display and voltage
generator off
turns on display and cursor; entire display is blank after
initialization
sets mode to increment the address by 1 and to shift the
cursor to the right at the time of write to the CG/DDRAM;
display is not shifted
writes ‘P’; the DDRAM has already been selected by
initialization at power-on; the cursor is incremented by 1
and shifted to the right
writes ‘S’
sets DDRAM address to position the cursor at the head of
the 2nd line
writes ‘M’
OPERATION