SSD1789A Solomon Systech, SSD1789A Datasheet - Page 36

• Manufacturer Part Number: SSD1789A
• Description: CSTN LCD Driver
• Manufacturer: Solomon Systech

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8.1
Solomon Systech
To read data from the GDDRAM, 5DH command should be executed then input High to
for 6800-series parallel mode. Low to E(
provided for serial mode. In normal mode, GDDRAM column address pointer will be increased by one automatically
after each data read in 8-levels gray scale mode OR after each 3-bytes data read in 16-levels gray scale mode. Also, a
dummy read is required before the first data is read. See Figure 3 in Functional Description.
To write data to the GDDRAM, input Low to
serial interface, it will always be in write mode. GDDRAM column address pointer will be increased by one
automatically after each data write in 8-levels gray scale mode OR each 3-bytes data write in 16-levels scale mode.
The address will be reset to 0 in next data read/write operation is executed when it is 131.
Data Read / Write
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RD
R
) pin and High to
/
W
(
WR
) pin and High to
D/
C
pin for 8080-series parallel mode. No data read is
Jul 2004
D/
C
pin for 6800-series parallel mode. For
P 36/69 Rev 1.0
R
/
W
( WR ) pin and
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D/
C
pin
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