PCF2119AU NXP [NXP Semiconductors], PCF2119AU Datasheet - Page 33

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

NXP Semiconductors
PCF2119X
Product data sheet
10.2.2.3 Entry_mode_set
10.2.2.4 Display_ctl instructions
Table 18.
Bit I_D: When bit I_D = 1 the DDRAM or CGRAM address increments by 1 when data is
written into or read from the DDRAM or CGRAM. The cursor or blink position moves to the
right.
When bit I_D = 0 the DDRAM or CGRAM address decrements by 1 when data is written
into or read from the DDRAM or CGRAM. The cursor or blink position moves to the left.
The cursor underline and cursor character blink are inhibited when the CGRAM is
accessed.
Bit S: When bit S = 0, the display does not shift.
During DDRAM write, when bit S = 1 and bit I_D = 0, the entire display shifts to the right;
when bit S = 1 and bit I_D = 1, the entire display shifts to the left.
Thus it appears as if the cursor stands still and the display moves. The display does not
shift when reading from the DDRAM, or when writing to or reading from the CGRAM.
Table 19.
Bit
RS
R/W
7 to 2
1
0
Bit
RS
R/W
7 to 3
2
1
0
Symbol
-
-
-
I_D
S
Symbol
-
-
D
C
B
Entry_mode_set bit description
Display_ctl bit description
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 15 November 2010
Value
0
0
000001
0
1
0
1
Value
0
0
00001
0
1
0
1
0
1
Description
see
fixed value
address increment or decrement
shift display to the left or right
Description
see
fixed value
display on or off
cursor on or off
character blink on or off
DDRAM or CGRAM address decrements by 1,
cursor moves to the left
DDRAM or CGRAM address increments by 1,
cursor moves to the right
display does not shift
display shifts
display is off; chip is in power-down mode
display is on
cursor is off
cursor is on
character blink is off
character blink is on
Table 10
Table 10
LCD controllers/drivers
PCF2119x
© NXP B.V. 2010. All rights reserved.
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