HD66789 Datasheet, PDF (123/156 Pages) Renesas Technology Corp – 528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit

HD66789
Preliminary
To switch between the 262, 144-color mode and the 8-color mode, make settings according to the following
sequences.
262,144 to 8 colors
Display off
GON = “1”
DTE = “1”
D1-0 = “10”
Wait (2 frame or more)
Display off
GON = “1”
DTE = “0”
D1-0 = “10”
Wait (2 frame or more)
Display off
GON = “0”
DTE = “0”
D1-0 = “00”
8 to 22,144 colors
Display off
GON =”1”
DTE = “1”
D1-0 = “10”
Wait (2 frame or more)
Display off
GON = “1”
DTE = “0”
D1-0 = “10”
Wait (2 frame or more)
Display off
GON = “0”
DTE = “0”
D1-0 = “00”
Setting of RAM
CL = “1”
Wait (40 msec or more)
Display on
GON = “0”
DTE = “0”
D1-0 = “01”
Wait (2 frame or more)
Display on
GON = 1
DTE = 0
D1-0 = 01
Display on
GON =”1”
DTE = “0”
D1-0 = “11”
Wait (2H or longer)
Display on
GON =”1”
DTE = “1”
D1-0 = “11”
Displaying
in 8-color mode
Setting of RAM
CL = “0”
Wait (40 msec or more)
Display on
GON = “0”
DTE = “0”
D1-0 = “01”
Wait (2 frame or more)
Display on
GON =”1”
DTE = “0”
D1-0 = “01”
Display on
GON = “1”
DTE = “0”
D1-0 = “11”
Wait (2H or longer)
Display on
GON =”1”
DTE = “1”
D1-0 = “11”
Displaying
in 262,144-color mode
Rev.0.12, May 09 2003, page 123 of 156