PCF2119AU/2DA/2 NXP [NXP Semiconductors], PCF2119AU/2DA/2 Datasheet - Page 8

• Manufacturer Part Number: PCF2119AU/2DA/2
• Description: LCD controllers/drivers
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
Table 4.
[1]
PCF2119X_5
Product data sheet
Step Function
1
2
3
4
5
6
7
8
9
10
11
The Busy Flag (BF) indicates the busy state (bit BF = 1) until initialization ends. The busy state lasts 2 ms. The chip may also be
initialized by software (see
Clear_display
Entry_mode_set
Display_ctl
Function_set
default address pointer to DDRAM
Icon_ctl
Screen_conf
Disp_conf
Temp_ctl
VLCD_set
I
HV_gen
2
C-bus interface reset
State after reset
8.3 Power-down mode
8.4 LCD supply voltage generator
The chip can be put into power-down mode by applying a HIGH-level to pin PD. In
power-down mode all static currents are switched off (no internal oscillator, no bias level
generation and all LCD outputs are internally connected to V
During power-down, information in the RAMs and the chip state are preserved. Instruction
execution during power-down is possible when pin OSC is externally clocked.
The LCD supply voltage may be generated on-chip. The V
two internal 6-bit registers: V
character mode and register V
The nominal LCD operating voltage at room temperature is given by
Where V
It should be noted that V
V
LCD nom
Table 43
x
is the integer value of the register V
and
=
Table
V
x
Control bit and
register state
bit I_D = 1
bit S = 0
bit D = 0
bit C = 0
bit B = 0
bit DL = 1
bit M = 0
bit SL = 0
bit H = 0
[1]
bit IM = 0
bit IB = 0
bit L = 0
bit P = 0; bit Q = 0
bit TC1 = 0; bit TC2 = 0 default temperature coefficient
register V
register V
bit S1 = 1; bit S0 = 0
44).
0.08
Rev. 05 — 13 August 2009
+
LCD
A
B
1.82
= 0;
= 0
is sometimes referred as the LCD operating voltage (V
A
B
and V
with the voltage for icon mode.
B
. Register V
Description
incremental cursor move direction
no display shift
display off
cursor off
cursor character blink off
8-bit interface
1-line display
1:18 multiplex drive mode
normal instruction set
character mode, full display
icon blink disabled
default configuration
default configurations
V
V
(4 voltage multipliers)
LCD
LCD
generator off
generator set to 3 internal stages
A
or V
A
is programmed with the voltage for
B
.
LCD
SS
generator is controlled by
).
LCD controllers/drivers
PCF2119x
Equation
© NXP B.V. 2009. All rights reserved.
Reference
Table 16
Table 18
Table 19
Table 12
Table 22
Table 25
Table 23
Table 24
Table 28
Table 32
Table 30
2:
oper
8 of 79
).
(2)