a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9325
TRI
0
DFM
*
8-bit MPU System Interface Data Format
system 8-bit interface (2 transfers/pixel) 65,536 colors
1st Transfer
2nd Transfer
DB
17
DB
16
DB
15
DB
14
DB
13
DB
12
DB
11
DB
10
DB
17
DB
16
DB
15
DB
14
DB
13
DB
12
DB
11
DB
10
R5
R4
R3
R2
R1
R0
G5
G4
G3
G2
G1
G0
B5
B4
B3
B2
B1
B0
80-system 8-bit interface (3 transfers/pixel) 262,144 colors
1st Transfer
2nd Transfer
3rd Transfer
DB
11
DB
10
DB
17
DB
16
DB
15
DB
14
DB
13
DB
12
DB
11
DB
10
DB
17
DB
16
DB
15
DB
14
DB
13
DB
12
DB
11
DB
10
1
1
0
1
R5
R4
R3
R2
R1
R0
G5
G4
G3
G2
G1
G0
B5
B4
B3
B2
B1
B0
80-system 8-bit interface (3 transfers/pixel) 262,144 colors
1st Transfer
2nd Transfer
3rd Transfer
DB
17
DB
16
DB
15
DB
14
DB
13
DB
12
DB
17
DB
16
DB
15
DB
14
DB
13
DB
12
DB
17
DB
16
DB
15
DB
14
DB
13
DB
12
R5
R4
R3
R2
R1
R0
G5
G4
G3
G2
G1
G0
B5
B4
B3
B2
B1
B0
Figure5 8-bit System Interface Data Format
Data transfer synchronization in 8/9-bit bus interface mode
ILI9325 supports a data transfer synchronization function to reset upper and lower counters which count the
transfers numbers of upper and lower byte in 8/9-bit interface mode. If a mismatch arises in the numbers of
transfers between the upper and lower byte counters due to noise and so on, the “00”h register is written 4
times consecutively to reset the upper and lower counters so that data transfer will restart with a transfer of
upper byte. This synchronization function can effectively prevent display error if the upper/lower counters are
periodically reset.
RS
RD
nWR
Upper/
Lower
DB[17:9]
“00”h
“00”h
“00”h
“00”h
Upper
Lower
8-/9-bit transfer
synchronization
Figure6 Data Transfer Synchronization in 8/9-bit System Interface
7.3. Serial Peripheral Interface (SPI)
The Serial Peripheral Interface (SPI) is selected by setting the IM[3:0] pins as “010x” level. The chip select pin
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 29 of 111
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