SSD1322 SOLOMON SYSTECH, SSD1322 Datasheet - Page 45

• Manufacturer Part Number: SSD1322
• Description: Dot Matrix High Power OLED/PLED Segment/Common Driver
• Manufacturer: SOLOMON SYSTECH

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10.1.23Master Current Control (C7h)
This double byte command is to control the segment output current by a scaling factor. The chip has 16
master control steps, with the factor ranges from 1 [0000b] to 16 [1111b – default]. The smaller the master
current value, the dimmer the OLED panel display is set.
For example, if original segment output current is 160uA at scale factor = 16, setting scale factor to 8 would
reduce the current to 80uA.
10.1.24Set Multiplex Ratio (CAh)
This double byte command switches default 1:128 multiplex mode to any multiplex mode from 16 to 128.
For example, when multiplex ratio is set to 16, only 16 common pins are enabled. The starting and the ending
of the enabled common pins are depended on the setting of “Display Offset” register programmed by
command A2h.
and Figure 10-9 show examples of setting the multiplex ratio through command
Figure 10-8
CAh.
10.1.25 Set Command Lock (FDh)
This command is used to lock the OLED driver IC from accepting any command except itself. After entering
FDh 16h (A[2]=1b), the OLED driver IC will not respond to any newly-entered command (except FDh 12h
A[2]=0b) and there will be no memory access. This is call “Lock” state. That means the OLED driver IC
ignore all the commands (except FDh 12h A[2]=0b) during the “Lock” state.
Entering FDh 12h (A[2]=0b) can unlock the OLED driver IC. That means the driver IC resume from the
“Lock” state. And the driver IC will then respond to the command and memory access.
SSD1322
Rev 0.10
P 45/56 Apr 2008
Solomon Systech
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