SSD1306Z datasheet(37/65 Pages) ETC2

37 / 65 page

SSD1306

Rev 1.1

P 37/59

Apr 2008

Solomon Systech

10.1.9

Entire Display ON (A4h/A5h)

A4h command enable display outputs according to the GDDRAM contents.

If A5h command is issued, then by using A4h command, the display will resume to the GDDRAM contents.

In other words, A4h command resumes the display from entire display “ON” stage.

A5h command forces the entire display to be “ON”, regardless of the contents of the display data RAM.

10.1.10 Set Normal/Inverse Display (A6h/A7h)

This command sets the display to be either normal or inverse. In normal display a RAM data of 1 indicates an

“ON” pixel while in inverse display a RAM data of 0 indicates an “ON” pixel.

10.1.11 Set Multiplex Ratio (A8h)

This command switches the default 63 multiplex mode to any multiplex ratio, ranging from 16 to 63. The

output pads COM0~COM63 will be switched to the corresponding COM signal.

10.1.12 Set Display ON/OFF (AEh/AFh)

These single byte commands are used to turn the OLED panel display ON or OFF.

When the display is ON, the selected circuits by Set Master Configuration command will be turned ON.

When the display is OFF, those circuits will be turned OFF and the segment and common output are in VSS

state and high impedance state, respectively. These commands set the display to one of the two states:

AEh : Display OFF

AFh : Display ON

Figure 10-6 :Transition between different modes

10.1.13 Set Page Start Address for Page Addressing Mode (B0h~B7h)

This command positions the page start address from 0 to 7 in GDDRAM under Page Addressing Mode.

Please refer to Table 9-1 and Section 10.1.3 for details.

10.1.14 Set COM Output Scan Direction (C0h/C8h)

This command sets the scan direction of the COM output, allowing layout flexibility in the OLED module

design. Additionally, the display will show once this command is issued. For example, if this command is

sent during normal display then the graphic display will be vertically flipped immediately. Please refer to

Table 10-3 for details.

10.1.15 Set Display Offset (D3h)

This is a double byte command. The second command specifies the mapping of the display start line to one of

COM0~COM63 (assuming that COM0 is the display start line then the display start line register is equal to 0).

For example, to move the COM16 towards the COM0 direction by 16 lines the 6-bit data in the second byte

should be given as 010000b. To move in the opposite direction by 16 lines the 6-bit data should be given by

64 – 16, so the second byte would be 100000b. The following two tables (Table 10-1, Table 10-2) show the

example of setting the command C0h/C8h and D3h.

Normal mode

Sleep mode

AFh

AEh

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