IZD1520U Ver la hoja de datos (PDF) - Integral Corp.
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IZD1520U Datasheet PDF : 12 Pages
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IZD1520U
DISPLAY COMMANDS
(Based on the 80-port MPU; the RD and WR commands differ for the 68-port MPU)
Command
RD WR A0 D7 D6 D5 D4 D3 D2 D1 D0
Function
1 Display ON/OFF 1 0 0
2 Display START
Line
3 Page Address
Set
10 0
10 0
1 0 1 0 1 1 1 0/1 Switches the entire display ON or OFF regard-
less of the Display RAM’s data or the internal
status. *Note
1 1 0 Display START
address (0 ÷ 31)
Determines the line of RAM data to be dis-
played at the display’s top line (COM0)
1 0 1 1 1 0 Page Sets the page of the Display RAM in the page
address register
4 Column (Seg-
ment) Address
Set
5 Status Read
10 0
0 Column address
(0 ÷ 79)
01 0
0000
Sets the column address of the Display RAM
in the column address register
Reads the status.
BUSY 1: Busy (internal processing) 0: READY
status
ADC 1: Rightward (forward) output
0: Leftward (reverse) output
ON/OFF 1: Display OFF 0: Display ON
RESET 1: Resetting 0: Normal
6 Write Display
Data
7 Read Display
Data
8 ADC Select
9 Static Drive
ON/OFF
10 Duty Select
11 Read Modify
Write
12 End
13 Reset
1 0 1 Write Data
Writes the data on These commands ac-
the data bus to RAM cess a previously speci-
fied address
0 1 1 Read Data
Reads data from the of the Display RAM,
Display RAM onto after which the column
the data bus
address is incremented
one
10 0
1 0 1 0 0 0 0 0/1 Used to reverse the correspondence between
the Display RAM’s column addresses and
segment driver output ports
0: Rightward (forward) output 1: Leftward (re-
verse)
1 0 0 1 0 1 0 0 1 0 0/1 Selects normal display operation or static all-fit
drive display operation
1: Static drive (Power Save) 0: Normal display
1 0 0 1 0 1 0 1 0 0 0/1 Selects the duty factor for driving LCD cells
1: 1/32 duty 0: 1/16 duty
10 0
11 1000 0 0
Increments the column address counter by
one only when display data is written but not
when it is read
1 0 0 1 1 1 0 1 1 1 0 Cancels the Ready Modify Write mode
1 0 0 1 1 1 0 0 0 1 0 Resets the Display START line to the 1-st line
in the register.
Resets the column address counter and page
address register to 0.
Note: Power Save mode is entered by selecting static drive in the Display OFF status.
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