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AK6481CM Datasheet(PDF) 5 Page - Asahi Kasei Microsystems |
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AK6481CM Datasheet(HTML) 5 Page - Asahi Kasei Microsystems |
5 / 15 page ASAHI KASEI [AK6480C/81] DAS04E-00 2005/03 - 5 - Functional Description The AK6480C/81C has 5 instructions such as READ, WRITE, Page Write, WREN (write enable) and WRDS (write disable). Each instruction is organized by op-code block (8bits), address block (8bits) and data (8bits x 2). When input level of SK pin is high level and input level of chip select ( CS ) pin is changed from high level to low level, AK6480C/81C can receive the instructions. When the instructions are executed consecutively, the CS pin should be brought to high level for a minimum of 250ns(tCS) between consecutive instruction cycle. Instruction Set For AK6480C Instruction Op-Code Address Data WRITE 1 0 1 0 0 1 0 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 – D0 Page Write 1 0 1 1 0 1 0 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 – D0 READ 1 0 1 0 1 0 0 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 – D0 WREN 1 0 1 0 0 0 1 1 X X X X X X X X WRDS 1 0 1 0 0 0 0 0 X X X X X X X X (WRAL) 1 0 1 0 1 1 1 1 X X X X X X X X D15 – D0 X: don't care Instruction Set For AK6481C Instruction Op-Code Address Data WRITE 1 0 1 0 0 1 0 A0 A1 A2 A3 A4 A5 A6 A7 A8 D0 – D15 Page Write 1 0 1 1 0 1 0 A0 A1 A2 A3 A4 A5 A6 A7 A8 D0 – D15 READ 1 0 1 0 1 0 0 A0 A1 A2 A3 A4 A5 A6 A7 A8 D0 – D15 WREN 1 0 1 0 0 0 1 1 X X X X X X X X WRDS 1 0 1 0 0 0 0 0 X X X X X X X X (WRAL) 1 0 1 0 1 1 1 1 X X X X X X X X D0 – D15 X: don't care (Note) The WRAL instruction is used for factory function test only. User can't use this instruction. |
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