PT6880 Datasheet, PDF (23/42 Pages) Princeton Technology Corp – OLED Driver/Controller IC

OLED Driver/Controller IC
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Preliminary
PT6880
DL : Interface Data Length Control Bit
This is used to set the interface data length. When DL is set to "1", the data is sent or received in
8-bit length via the DB0 to DB7 (for an 8-Bit Data Transfer). When DL is set to "0", the data is
sent or received in 4-bit length via DB4 to DB7 ( for a 4-Bit Data Transfer). When the 4-bit data
length is selected, the data must be sent or received twice.
N : Number of Display Line
This is used to set the number of display lines. When N="1", the 2-line display is selected.
When N is set to "0", the 1-line display is selected.
F : Character Font Set
This is used to set the character font set. When F is set to "0", the 5 x 8 dot character font is
selected. When F is set to "1", the 5 x 10 dot character font is selected.
It must be noted that the character font setting must be performed at the head of the program
before executing any instructions other than the Busy Flag and Address Instruction. Otherwise,
the Function Set Instruction cannot be executed unless the interface data length is changed.
Set CGRAM Address Instruction
This instruction is used to set the CGRAM Address binary AAAAAA into the Address Counter.
Data is then written to or read from the MPU for CGRAM.
RS R/WB DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 ACG ACG ACG ACG ACG ACG
Note: ACG is the CGRAM Address
Set DDRAM Address Instruction
This instruction is used to set the DDRAM Address binary AAAAAAA into the Address Counter.
The data is written to or read from the MPU for the DDRAM. If 1-line display is selected (N="0"),
then AAAAAAA can be 00H to 4FH. When the 2-line display is selected, then AAAAAAA can be
00H to 27H for the first line and 40H to 67H for the second line.
RS R/WB DB7
00 1
Note: ADD = DDRAM Address
DB6 DB5 DB4
ADD ADD ADD
Higher Order Bits
DB3
ADD
DB2 DB1 DB0
ADD ADD ADD
Lower Order Bits
PT6880 pre 1.1
Page 23
Mar. 2002