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AK93C45CU Datasheet(PDF) 4 Page - Asahi Kasei Microsystems |
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AK93C45CU Datasheet(HTML) 4 Page - Asahi Kasei Microsystems |
4 / 16 page ASAHI KASEI [AK93C45C/55C/65C] DAM06E-01 2005/10 - 4 - Functional Description The AK93C45C/55C/65C has 6 instructions such as READ, WRITE, PAGE WRITE, EWEN, EWDS and WRAL. A valid instruction consists of a Start Bit (Logic"1"), the appropriate Op Code and the desired memory Address location. The CS pin must be brought low for a minimum of ‘tCS’ between each instruction when the instruction is continuously executed. Instruction Start Bit Op Code Address Data Comments READ 1 10 A5-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 A5-A0 D15-D0 Writes register. PAGE WRITE 1 11 A5-A0 D15-D0 Page Write register. EWEN 1 00 11XXXX Write enable must precede all programming modes. EWDS 1 00 00XXXX Disables all programming instructions. WRAL 1 00 010000 D15-D0 Writes all registers. X: Don't care table1. Instruction Set for the AK93C45C Instruction Start Bit Op Code Address Data Comments READ 1 10 XA6-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 XA6-A0 D15-D0 Writes register. PAGE WRITE 1 11 XA6-A0 D15-D0 Page Write register. EWEN 1 00 11XXXXXX Write enable must precede all programming modes. EWDS 1 00 00XXXXXX Disables all programming instructions. WRAL 1 00 010000000 D15-D0 Writes all registers. X: Don't care table2. Instruction Set for the AK93C55C Instruction Start Bit Op Code Address Data Comments READ 1 10 A7-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 A7-A0 D15-D0 Writes register. PAGE WRITE 1 11 A7-A0 D15-D0 Page Write register. EWEN 1 00 11XXXXXX Write enable must precede all programming modes. EWDS 1 00 00XXXXXX Disables all programming instructions. WRAL 1 00 010000000 D15-D0 Writes all registers. X: Don't care table3. Instruction Set for the AK93C65C (Note) The AK93C45C/55C/65C perceives the start bit in the logic"1" and also "01". |
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