IZD1520 Просмотр технического описания (PDF) - Integral Corp.
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IZD1520 Datasheet PDF : 13 Pages
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CMOS DOT MATRIX LCD DRIVER
IZD1520
DISPLAY COMMANDS
(Based on the 80-port MPU; the RD and WR commands differ for the 68-port MPU)
Command
1 Display ON/OFF
2 Display START Line
3 Page Address Set
RD WR A0
10 0
10 0
10 0
D7 D6 D5 D4 D3 D2 D1 D0
1 0 1 0 1 1 1 0/1
11
10
0 Display START
address (0 ÷ 31)
1 1 1 0 Page
4 Column (Segment)
Address Set
5 Status Read
10 0
01 0
0 Column address
(0 ÷ 79)
0000
6 Write Display Data
10 1
Write Data
7 Read Display Data
01 1
Read Data
8 ADC Select
10 0
1 0 1 0 0 0 0 0/1
9 Static Drive ON/OFF 1 0 0
1 0 1 0 0 1 0 0/1
10 Duty Select
11 Read Modify Write
12 End
13 Reset
10 0
10 0
10 0
10 0
1 0 1 0 1 0 0 0/1
11 1000 0 0
11 1011 1 0
11 1000 1 0
Note: Power Save mode is entered by selecting static drive in the Display OFF status.
Function
Switches the entire display ON or OFF regardless of
the Display RAM’s data or the internal status. *Note
Determines the line of RAM data to be displayed at the
display’s top line (COM0)
Sets the page of the Display RAM in the page address
register
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
Writes the data on the
data bus to RAM
These commands access a
previously specified
address
Reads data from the
Display RAM onto the
data bus
of the Display RAM,
after which the column
address is incremented
one
Used to reverse the correspondence between the
Display RAM’s column addresses and segment driver
output ports
0: Rightward (forward) output 1: Leftward (reverse)
Selects normal display operation or static all-fit drive
display operation
1: Static drive (Power Save) 0: Normal display
Selects the duty factor for driving LCD cells
1: 1/32 duty 0: 1/16 duty
Increments the column address counter by one only
when display data is written but not when it is read
Cancels the Ready Modify Write mode
Resets the Display START line to the 1-st line in the
register.
Resets the column address counter and page address
register to 0.
9
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