HD66789 Datasheet, PDF (74/156 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
80-system 18-bit interface
80-system 18-bit parallel data transmission becomes operable by setting IM3/2/1/0 pins to
IOVcc/GND/IOVcc/GND levels respectively.
MPU
CSn*
A1
HWR*
(RD*)
D31-0
CS*
RS
WR*
HD66789
(RD*)
DB17-0
18
18-bit microcomputer and HD66789
Instruction
Input DB DB DB DB DB DB DB DB DB DB DB DB DB _{DB DB DB DB DB}
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Instruction ^{IB IB IB IB IB IB IB IB}
15 14 13 12 11 10 9 8
RAM data write
IB IB IB IB IB IB IB IB
76543210
Instruction code
Input ^{DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB}
17 16 15 14 13 12 12 10 9 8 7 6 5 4 3 2 1 0
Write data to
GRAM
R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0
One pixel
262,144 colors are available in 18-bit system interface
Data format for 18-bit interface
Rev.0.12, May 09 2003, page 74 of 156