ssd1325z Bolymin, Inc, ssd1325z Datasheet - Page 17

• Manufacturer Part Number: ssd1325z
• Description: 128 X 80, 16 Gray Scale Dot Matrix Oled/pled Segment/common Driver With Controller
• Manufacturer: Bolymin, Inc

8.1.2 MPU Parallel 8080-series Interface
The parallel interface consists of 8 bi-directional data pins (D[7:0]), RD#, WR#, D/C# and CS#.
A LOW in D/C# indicates COMMAND read/write and HIGH in D/C# indicates DATA read/write.
A rising edge of RD# input serves as a data READ latch signal while CS# is kept LOW.
A rising edge of WR# input serves as a data/command WRITE latch signal while CS# is kept LOW.
Solomon Systech
Databus
CS#
RD#
D[7:0]
D/C#
WR#
R/W#
CS#
D[7:0]
RD#
WR#
D/C#
E
Figure 6 : Example of Write procedure in 8080 parallel interface mode
high
low
Figure 7 : Example of Read procedure in 8080 parallel interface mode
Write column
high
low
address
Figure 5 : Data read back procedure - insertion of dummy read
N
Dummy read
Read 1
n
st
data
Read 2
Oct 2007
n+1
nd
data
P 17/60
Read 3
n+2
Rev 1.9
rd
SSD1325