PCF2119AU NXP [NXP Semiconductors], PCF2119AU Datasheet - Page 41

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

NXP Semiconductors
PCF2119X
Product data sheet
10.2.3.6 VLCD_set
Table 32.
The V
programmed by instruction. Two on-chip registers (V
factor for the character mode and the icon mode, respectively. The generated V
value is independent of V
V
Bit
RS
R/W
7
6
5 to 0
1. Send Function_set instruction with bit H = 1.
2. Send VLCD_set instruction to write to the voltage register:
3. Send Function_set instruction with bit H = 0 to resume normal programming.
x
programming:
a. Bit 7 = 1 and bit 6 = 0: bit 5 to bit 0 are the multiplication factor for V
b. Bit 7 = 1 and bit 6 = 1: bit 5 to bit 0 are the multiplication factor for V
c. Bit 5 to bit 0 = 0 switches V
d. During ‘display off’/power-down the V
LCD
mode (V
mode (V
Symbol
-
-
-
V
V
value is calculated with the
A
VLCD_set bit description
or V
A
B
All information provided in this document is subject to legal disclaimers.
B
).
).
Rev. 7 — 15 November 2010
Value
0
0
1
0
1
000000 to
111111
DD
, allowing battery operation of the chip.
LCD
Equation 2 on page
generator off (when selected).
Description
see
fixed value
set register VA or VB
factor for calculating VLCD
set register V
set register V
LCD
Table 10
generator is also disabled.
A
and V
A
B
10. The multiplication factor is
B
) hold the multiplication
LCD controllers/drivers
PCF2119x
© NXP B.V. 2010. All rights reserved.
LCD
LCD
of character
of icon
LCDOUT
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