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AK93C95AF Datasheet(PDF) 4 Page - Asahi Kasei Microsystems |
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AK93C95AF Datasheet(HTML) 4 Page - Asahi Kasei Microsystems |
4 / 13 page ASAHI KASEI [AK93C85A/95A/10A] DAM02E-03 2004/05 - 4 - Functional Description The AK93C85A/95A/10A has 4 instructions such as READ, WRITE, EWEN and EWDS. 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 250ns (tCS) between each instruction when the instruction is continuously executed. Instructi on Start Bit Op Code Address Data Comments READ 01 10 A9-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 01 01 A9-A0 D15-D0 Writes register. EWEN 01 00 11XXXXXXXX Write enable must precede all programming modes. EWDS 01 00 00XXXXXXXX Disables all programming instructions. WRAL 01 00 01XXXXXXXX D15-D0 Writes all registers. X: Don't care table1. Instruction Set for the AK93C85A Instructi on Start Bit Op Code Address Data Comments READ 1 10 A10-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 A10-A0 D15-D0 Writes register. EWEN 1 00 11XXXXXXXXX Write enable must precede all programming modes. EWDS 1 00 00XXXXXXXXX Disables all programming instructions. WRAL 1 00 01XXXXXXXXX D15-D0 Writes all registers. X: Don't care table2. Instruction Set for the AK93C95A Instructi on Start Bit Op Code Address Data Comments READ 1 10 A11-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 A11-A0 D15-D0 Writes register. EWEN 1 00 11XXXXXXXXXX Write enable must precede all programming modes. EWDS 1 00 00XXXXXXXXXX Disables all programming instructions. WRAL 1 00 01XXXXXXXXXX D15-D0 Writes all registers. X: Don't care table3. Instruction Set for the AK93C10A (Note) The WRAL instruction are used for factory function test only. User can't use the WRAL instruction. The AK93C85A perceives the start bit in the logic"01" and also "001". The AK93C95A/10A perceives the start bit in the logic"1" and also "01". |
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