MC141539 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC141539 Datasheet PDF : 29 Pages
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Address Increment Table (Automatic)
D/C
R/W Comment
0
0 Write Command
0
1 Read Command
1
0 Write Data
1
1 Read Data
Address Increment
No
No
Yes
Yes
Remarks
*1
*2
Address Increment is done automatically data read write. The column address pointer of GDDRAM*3 is affected.
Remarks : *1. Refer to the command “Read Contrast Value”.
*2. If write data is issued after Command Clear RAM, Address increase is not applied.
*3. Column Address will be wrapped round when overflow.
Power Up Sequence (Commands Required)
Command Required
POR Status
Remarks
Set Clock Frequency
Set Oscillator Enable
Set Annunciator Control Signals
Set Duty Cycle
Set Bias Ratio
Set DC/DC Converter On
Set Internal Regulator On
Set Temperature Coefficient
Set Internal Contrast Control On
Increase Contrast Value
Set Internal Voltage Divider On
Set Segment Mapping
Set Common Mapping
Set Vertical Scroll Value
Set Display On
Low
Disable
All annuciators off
1/32 duty
1/7 bias
Off
Off
TC=0%
Off
Contrast Value = 0
Off
Seg. 0 = Col. 0
Com. 0 = Row 0
Scroll Value = 0
Off
*1
*1
*1
*1
*1
*1
*1, *3
*1, *3
*1, *2, *3
Remarks :
*1 -- Required only if desired status differ from POR.
*2 -- Effective only if Internal Contrast Control is enabled.
*3 -- Effective only if Regulator is enabled.
Commands Required for Display Mode Setup
Display Mode
Display Mode
Annunciator Display
Standby Mode 1.
Standby Mode 2.
Standby Mode 3.
Commands Required
Set External / Internal Oscillator,
Set Oscillator Enable,
Set Display On.
Set External / Internal Oscillator,
Set Oscillator Enable,
Set Annunciator Control Signals.
Set Display Off,
Set Oscillator Disable.
Set External Oscillator,
Set Annunciator Control Signals,
Set Display Off,
Set Oscillator Enable.
Set Internal Oscillator,
Set Annunciator Control Signals,
Set Display Off,
Set Oscillator Enable.
(0111101X0)*
(01111111)*
(00101001)*
(0111101X0)*
(01111111)*
(01100A1A0X0)*
(00101000)*
(01111110)*
(01111101)*
(01100A1A0X0)*
(00101000)*
(01111111)*
(01111100)*
(01100A1A0X0)*
(00101000)*
(01111111)*
Other Related Command with Display Mode : Set Duty Cycle, Set Column Mapping, Set Row Mapping, Set Vertical Scroll Value.
Commands Related to Voltage Generator :
Set Oscillator Disable/Enable, Set Internal Regulator On/Off, Set Duty Cycle, Set Temperature Coefficient, Set Internal Contrast Control On/Off,
Increase/Decrease Contrast Level, Set Internal Voltage Divider On/Off, Set Bias Ratio, Set Display On/Off, Set Reference Voltage Generator,
Set VDD Reference, Set Contrast Level
* No need to resend the command again if it is set previously
MC141539
3–140
MOTOROLA
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