pcf8833 NXP Semiconductors, pcf8833 Datasheet - Page 83

• Manufacturer Part Number: pcf8833
• Description: Stn Rgb - 132 X 132 X 3 Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 87 Possible MMVOPCAL values
15.2
The factory default setting of the following features can be
predefined with OTP cells:
Table 88 Factory default bit EFD
2003 Feb 14
Multiplication factor S[1:0] for full and partial Display
mode
Set VPR[8:0] for full and partial Display mode
Set bias system VB[3:0] for full and partial Display mode
Segmented temperature compensation slopes for V
SLA[2:0], SLB[2:0], SLC[2:0] and SLD[2:0]
Segmented temperature frame frequencies DFA[6:0],
DFB[6:0], DFC[6:0] and DFD[6:0]
Frame frequency 8-colour mode DF8[6:0]
TRS and BRS
Identification bits ID2[7:0] and ID3[7:0].
STN RGB - 132
Factory defaults
EFD
0
1
MMVOPCAL[5:0]
011111
011110
011101
000010
000001
000000
111111
111110
100010
100001
100000
:
:
configuration data is taken from the interface if SFD = 0 or from the OTP if SFD = 1
OTP values are used for configuration
132
3 driver
DECIMAL EQUIVALENT
LCD
,
31
30
29
83
2
1
0
30
31
32
:
:
1
2
It is possible to change to settings defined by registers
which can be set via the interface, except ID2[7:0] and
ID3[7:0] which are defined only by OTP cells. The
selection of the factory defaults mode is made by setting
the factory default OTP bit EFD.
The operation can be thought of as a switch that selects
between two sources for the data. When the factory
defaults are selected (EFD = 1), changing the values via
the interface is not possible, not even by sending the SFD
command.
ACTION
V
LCD
+1240 mV
+1200 mV
+1160 mV
+80 mV
+40 mV
1200 mV
1240 mV
1280 mV
Objective specification
0 mV
40 mV
80 mV
OFFSET
:
:
PCF8833