SSD1828Z ETC [List of Unclassifed Manufacturers], SSD1828Z Datasheet - Page 30

• Manufacturer Part Number: SSD1828Z
• Description: LCD Segment / Common Driver with Controller CMOS
• Manufacturer: ETC [List of Unclassifed Manufacturers]

SSD1828
8.16 Set Frame Frequency
8.17 Set Multiplex Ratio
8.18 Set Power Save Mode
8.19 Exit Power Save Mode
8.20 Set N-line Inversion
8.21 Exit N-line Inversion
8.22 Set DC-DC Converter Factor
8.23 Set Icon Enable
8.24 Start Internal Oscillator
8.25 Set Display Data Length
8.26 Set Test Mode
This command specifies the frame frequency so as to minimize the flickering due to the ac main
frequency. The frequency is set to 75Hz at 64 mux after POR.
This command switches default 64 multiplex modes to any multiplex from 16 to 64, if Icon is
disabled (POR). When Icon is set enable, the corresponding multiplex ratio setting will be
mapped to 17 to 65. The chip pads ROW0-ROW63 will be switched to corresponding COM
signal output as specified in Table 2.
Force the chip to enter Standby or Sleep Mode. LSB of the command will define which mode
will be entered.
This command releases the chip from Sleep Mode and return to normal operation.
Number of line inversion is set by this command for reducing crosstalk noise. 3 to 33-line
inversion operations could be selected. At POR, this operation is disabled.
It should be noted that the total number of mux (including the icon line) should NOT be a
multiple of the inversion number (n). Or else, some lines will not change their polarity during
frame change.
This command releases the chip from N-line inversion mode. The driving waveform will be
inverted once per frame after issuing this command.
Internal DC-DC converter factor is set by this command. For SSD1828, 2X to 5X multiplying
factors could be selected. 2X to 5X factors are selected using this command.
This command enable/disable the Icon displays.
After POR, the internal oscillator is OFF. It should be turned ON by sending this command to
the chip.
This two-bytes command only valid when 3-wire SPI configuration is set by H/W input
(PS0=PS1=L). The second 8-bit is used to indicate that a specified number display data byte(s)
(1-256) are to be transmitted. Next byte after the display data string is handled as a command.
This command forces the driver chip into its test mode for internal testing of the chip. Under
normal operation, user should NOT use this command.
Rev 1.10
07/2002
SOLOMON
25