MC144032B6WCB-SPTLY Midas, MC144032B6WCB-SPTLY Datasheet - Page 29

• Manufacturer Part Number: MC144032B6WCB-SPTLY
• Description: LCD, 144X32, STN, Y/GN B/L, CHINESE; Backlighting Colour: Yellow Green; LCD Display Type: STN; Pixel Size (H x W): 0....
• Manufacturer: Midas

● SET DDRAM ADDRESS
● READ BUSY FLAG (BF) AND ADDRESS
● WRITE DATA TO RAM
● READ RAM DATA
Set DDRAM address to address counter (AC) .
First line AC range is 80H..8FH
Second line AC range is 90H..9FH
Third line AC range is A0H..AFH
Fourth line AC range is B0H..BFH
Please note that only 2 lines can be display at a time.
Read busy flag BF can check whether internal operation is finished. At the same time the
value of address counter (AC) is also read. When BF = “1” new instruction will not be
accepted. Must wait for BF = “0” for new instruction.
Write data to internal RAM and alter the (AC) b y 1
Each RAM address (CGRAM,DDRAM,IR AM…..) must write 2 consecutive bytes for 16 bit
data. After the second byte the address counter will add or subtract by 1 according to the
entry mode set control bit.
Read data from internal RAM and alter the (AC) by 1
After address set to read (CGRAM,DDRAM,IR AM…..)a DUMMY READ is required.
There is no need to DUMMY READ for the following bytes unless a new address set
instruction is issued.
code
code
code
code
RS
RS
RS
0
1
1
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
RW
RW
RW
1
0
1
0
DB7
DB7
DB7
1 AC6 AC5 AC4 AC3 AC2 AC1 AC0
D7
D7
BF
DB6
DB6
DB6
AC6 AC5 AC4 AC3 AC2 AC1 AC0
D6
D6
DB5
DB5
DB5
D5
D5
DB4
DB4
DB4
D4
D4
DB3
DB3
DB3
D3
D3
DB2
DB2
DB2
D2
D2
DB1
DB1
DB1
D1
D1
DB0
DB0
DB0
D0
D0