OM6208 NXP Semiconductors, OM6208 Datasheet - Page 46

• Manufacturer Part Number: OM6208
• Description: Om6208 65 X 96 Pixels Matrix Grey-scale Lcd Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
17 MODULE MAKER PROGRAMMING
One Time Programmable (OTP) technology has been
implemented in the OM6208. This enables the module
maker to program some extended features of the OM6208
after it has been assembled on an LCD module.
Programming is made under the control of the interfaces
and the use of one special pin. This pin must be made
available on the module glass but does not need to be
accessed by the set maker.
The OM6208 features the following module maker
programmable parameters:
2003 feb 10
handbook, full pagewidth
V
Default temperature compensation slopes
Default charge pump multiplication factor
Default V
Default bias levels BS[2:0]
Default frame frequency range in grey-scale mode
GFR[2:0]
Default oscillator tuning in grey-scale mode GT[2:0]
Default frame frequency in black-and-white mode
SFR[2:0]
Default oscillator tune in black-and-white mode ST[2:0]
Default N-line inversion NL[6:0]
Default frame inversion FI
Enable factory default FD
Seal bit.
65 x 96 pixels matrix grey-scale LCD driver
LCD
calibration
PR
value
V T [ 6:0 ]
MMVOPCAL [ 5:0 ]
V PR [ 7:0 ]
Temperature compensation V T , 7 bit value
OTP V LCD calibration, 6 bit offset
V PR register, 8 bit value
Fig.41 V
range: 64 to 63
range: 32 to 31
range: 0 to 255
(usable range 32 to 224)
LCD
46
calibration.
17.1
The first OTP feature included is the ability to tune the
V
implemented in twos complement notation giving rise to a
positive or negative offset to the V
the circuit has underflow and overflow protection. In the
event of an overflow, the output will be clamped to 255;
with an underflow, the output will be clamped to logic 0.
The final control to the high voltage generator, V
the sum of all the calibration registers according to
Section 11.10, equation (4).
Table 20 V
5
0
0
0
0
0
0
1
1
1
1
1
LCD
:
:
4
1
1
1
0
0
0
1
1
0
0
0
voltage with a 6-bit code (MMVOPCAL). This code is
MMVOPCAL
:
:
V
LCD
3
1
1
1
0
0
0
1
1
0
0
0
:
:
LCD
calibration
2
1
1
1
0
0
0
1
1
0
0
0
:
:
calibration
range: 0 to 255
1
1
1
0
1
0
0
1
1
1
0
0
:
:
0
1
0
1
0
1
0
1
0
0
1
0
:
:
EQUIVALENT
DECIMAL
MGW839
V OP
31
30
29
2
1
0
30
31
32
:
:
1
2
PR
to high voltage
generator
register. The adder in
Product specification
V
OM6208
LCD
(mV)
930
900
870
OFFSET
OP
60
30
900
930
960
0
30
60
:
:
, will be