hd66789 Renesas Electronics Corporation., hd66789 Datasheet - Page 74

• Manufacturer Part Number: hd66789
• Description: 528-channel, One-chip Driver For Amorphous Tft Panels With 262,144-color Display Ram, Power Supply Circuit, And Gate Circuit
• Manufacturer: Renesas Electronics Corporation.

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