Nvis 5586A
Nvis Technologies Pvt. Ltd.
47
display cursor. Any ―1‖ bits in the 8 the row will result in the displayed dot regardless
of the cursor status (ON/OFF). Accordingly, if the cursor is to be used, CG RAM data
for the 8 the row should be set to ―0‖.
3.
CG RAM data bits 0-4 correspond to the column position of each character pattern bit
4 corresponding to the leftmost column of the character pattern CG RAM data bus are
not used for displaying character patterns, but may be used as a general.
4.
As shown in tables 2 and 3, character patterns in the CG RAM are accessed by
character codes with bits 4-7 equal to ―0‖. For example, the character code ―00‖ (HEX)
or ―80‖ (HEX), since bit 3 of the character code is a don‘t care bit (i.e. can take either
value ―0‖ or ―1‖).
5.
CG RAM data ―1‖ produces a dark dot, and data ―0‖ produces a light dot in the
corresponding position on the display panel.
Functions of Reset:
Using the Internal Reset Circuit to Start:
LCD Modular internal has an automatic power supply to be used to RESET when the power
rises. During RESET, the busy flag is set. When the voltage is raised to 4.5V in about 10ms,
it is in the busy stage. The following instructions are then used to set the beginning stage of
LCD.
1.
Clear display
2.
Function set
DL =
1
8-bit data length interface
N =
0
(single line display)
F =
0
The source of 5x7 dot of array character
3.
Display ON/OFF control
D =
1
Display OFF
C =
0
Cursor OFF
B =
0
Character flashing function OFF
4.
Entry mode set
I/D =
1
Increase mode
S =
0
Display OFF
Note :
If the time for the power to increases from 0.2V to 4.5V is greater than 0.1ms but
less than 10ms, the current cut-off will drop to 0.2V before it rises again. If it takes more
than 1ms, the LCD modular will automatically RESET. Otherwise, it has to depend on an
external software instruction to RESET (As describe below).
Summary of Contents for 5586A
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