OM6213 NXP Semiconductors, OM6213 Datasheet - Page 24

• Manufacturer Part Number: OM6213
• Description: Om6213 48 X 84 Pixels Matrix Lcd Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
20 Module Maker programming
The OM6213 features five Module Maker programmable
parameters:
1. V
2. Charge pump multiplication factor
3. Bias system selected when BS[2:0] = 100
4. V
5. Seal bit. Used to select the use of the default
2001 Nov 07
handbook, full pagewidth
48
TC[1:0] = 01 (TC1)
parameters or the Module Maker programmable
parameters. Once set:
a) The seal bit cannot be reset
b) The Module Maker programmable parameters
c) The Module Maker programmable parameters are
LCD
LCD
cannot be changed
selected and the default parameters are
deselected.
calibration
temperature coefficient selected when
84 pixels matrix LCD driver
V OS [ 4:0 ]
V CAL [ 4:0 ]
V PR [ 6:0 ]
V LCD calibration: 5-bit signed value
V PR register: 7-bit unsigned value
V LCD offset: 5-bit signed value
Fig.18 V
0 to 127
16 to 15
16 to 15
LCD
offset and calibration
24
20.1
The first parameter calibrates the V
A 5-bit code (V
code is implemented in two’s complement notation giving
rise to a positive or negative offset to the V
V
(performed by connecting the V
or to V
V
Table 6.
V
are parameters defined in Table 6. An example of the
correspondence between the V
V
to be 24.3 mV (TCB, temperature coefficient B) and V
assumed to be 0.
LCD
PR
LCD
LCD
2
values must always be within the ranges specified in
can be calculated from equations (5) and (6): a and b
calibration is shown in Table 9, where b is assumed
calibration may be used together with V
DD1
V
LCD
).
V
calibration
OP
V
CAL
LCD
=
[4:0]) is used for this parameter. The
V
=
OS
a
V OP
+
+
V
V
OP
CAL
to high voltage
generator
OS
CAL
+
b at
MGT852
[4:0] pads to either V
2 V
code and the relative
LCD
T
Product specification
nom
voltage.
PR
OM6213
PR
LCD
register.
offset
OS
SS1
(5)
(6)
is