PCF2119AU NXP [NXP Semiconductors], PCF2119AU Datasheet - Page 30

• Manufacturer Part Number: PCF2119AU
• Description: LCD controllers/drivers Single-chip LCD controller and driver
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCF2119X
Product data sheet
10.2.1.1 Function_set
10.2.1.2 BF_AC instructions
10.2.1 Basic instructions (bit H = 0 or 1)
Table 12.
[1]
[2]
[3]
[4]
[5]
Table 13.
[1]
Bit
RS
R/W
7 to 5
4
3
2
1
0
Bit
RS
R/W
7
6 to 0
When 4-bit width is selected, data is transmitted in two cycles using the parallel-bus. In a 4-bit application
ports DB3 to DB0 should be left open-circuit (internal pull-ups).
Default value after power-on in I
No impact if SL = 1.
Due to the internal pull-ups on DB3 to DB0 in a 4-bit application, the first Function_set after power-on sets
bits M, SL and H to logic 1. A second Function_set must be sent to set bits M, SL and H to the required
values.
Independent of bit M and bit L of the Screen_conf instruction (see
and row 17 are used. All other rows must be left open-circuit. The DDRAM map is the same as in the 2 × 16
character display mode, however, the second line cannot be displayed.
It is recommended that the BF status is checked before the next write operation is started.
Symbol
-
-
-
DL
-
M
SL
H
Symbol
-
-
BF
AC
Function_set bit description
BF_AC bit
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 15 November 2010
Value
0
0
001
0
1
0
0
1
0
1
0
1
Value
0
1
0
1
0000000 to
1111111
2
C-bus mode.
[4][5]
[1]
[2]
[3]
[4]
[4]
[1]
Description
see
fixed value
interface data length (for parallel mode only)
unused
number of display lines
multiplex mode
instruction set control
Description
see
read busy flag
read address counter
2 × 4 bits (DB7 to DB4)
8 bits (DB7 to DB0)
1 line × 32 characters
2 line × 16 characters
1:18 multiplex drive mode, 1 × 32 or 2 × 16
character display
1:9 multiplex drive mode, 1 × 16 character display
basic instruction set plus standard instruction set
basic instruction set plus extended instruction set
next instruction will be executed
internal operation is in progress;
next instruction will not be executed until BF = 0
Table 10
Table 10
Section
10.2.3.1). Only row 1 to row 8
LCD controllers/drivers
PCF2119x
© NXP B.V. 2010. All rights reserved.
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