ssd1329 ETC-unknow, ssd1329 Datasheet - Page 16

• Manufacturer Part Number: ssd1329
• Description: 128 X 128 Oled Segment / Common Driver With Controller Equips With 16 Gray Scale Levels And 64 Hard Icon Lines
• Manufacturer: ETC-unknow

8
8.1
8.1.1 MPU Parallel 6800-series Interface
The parallel interface consists of 8 bi-directional data pins (D[7:0]), R/W#, D/C#, E and CS#.
A LOW in R/W# indicates WRITE operation and HIGH in R/W# indicates READ operation.
A LOW in D/C# indicates COMMAND read/write and HIGH in D/C# indicates DATA read/write.
The E input serves as data latch signal while CS# is LOW. Data is latched at the falling edge of E signal.
Note
(1)
In order to match the operating frequency of display RAM with that of the microprocessor, some pipeline
processing is internally performed which requires the insertion of a dummy read before the first actual display
data read. This is shown in Figure 8-1.
↓ stands for falling edge of signal
H stands for HIGH in signal
L stands for LOW in signal
Solomon Systech
FUNCTIONAL BLOCK DESCRIPTIONS
MPU Interface selection
Databus
R/W#
E
Write column
Figure 8-1 : Data read back procedure - insertion of dummy read
address
N
Function
Write command
Read status
Write data
Read data
Table 8-1 : Control pins of 6800 interface
Dummy read
E
↓
↓
↓
↓
Read 1
R/W#
L
H
L
H
n
st
data
CS#
L
L
L
L
Read 2
Dec 2005 P 16/58
n+1
D/C#
L
L
H
H
nd
data
Read 3
Rev 1.1
n+2
rd
SSD1329