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IK2102DW Datasheet(PDF) 5 Page - IK Semicon Co., Ltd |
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IK2102DW Datasheet(HTML) 5 Page - IK Semicon Co., Ltd |
5 / 23 page IK2102 5 November 2013, Rev. 09 FUNCTIONAL DESCRIPTION Commands A command is the first byte (b0 to b7) inputted to IK2102 via DI/O Pin after STB pin has changed f rom ”HIGH” to “LOW” state. If for some reason the STB Pin is set “HIGH” while data or commands are being transmitted, the serial communication is initialized, and the data/commands being transmitted are considered invalid. COMMAND 1: DISPLAY MODE SETTING COMMANDS IK2102 provides 4 display modes setting as shown in the diagram below: As stated earlier a command is the first one byte (b0 to b7) transmitted to IK2102 via the DIN, DI/O Pin when STB is “LOW”. However, for these commands, Bit 3 & Bit 8 (b2 to b7) are given a value of “0”. The Display Mode Setting Commands determine the number of segments and grids be used (4 grids to13 segments, 7 grids to 10 segments). A display command “ON” must be executed in order to resume display. If the same mode setting is selected, no command execution is take place, therefore, nothing happens. When Power is turned “ON”, the mode 11 is selected. Display Mode Settings: 00: 4 Grids, (13 Segments) 01: 5 Grids, (12 Segments) 10: 6 Grids, (11 Segments) 11: 7 Grids, (10 Segments) COMMAND 2: DATA SETTING COMMANDS The Data Setting Commands executes the Data Write Mode for IK2102. The Data Setting Command, the bits5 and 6 (b4, b5) are given the value of “0”. , bit7 (b6) is given the value of “1” while bit8 (b7) is given the value of “0”. Please refer to the diagram below. When power is turned ON, bit 4 to bit 1 (b3 to b0) are given the value of “0”. |
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