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M93C86 датащи(PDF) 13 Page - STMicroelectronics |
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M93C86 датащи(HTML) 13 Page - STMicroelectronics |
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13 / 37 page ![]() M93C86, M93C76, M93C66, M93C56, M93C46 Instructions Doc ID 4997 Rev 10 13/37 Table 6. Instruction set for the M93C56 and M93C66 Instruction Description Start bit Op- code x8 origination (ORG = 0) x16 origination (ORG = 1) Address (1) (2) Data Required clock cycles Address (1) (3) Data Required clock cycles READ Read Data from Memory 1 10 A8-A0 Q7-Q0 A7-A0 Q15-Q0 WRITE Write Data to Memory 1 01 A8-A0 D7-D0 20 A7-A0 D15-D0 27 WEN Write Enable 1 00 1 1XXX XXXX 12 11XX XXXX 11 WDS Write Disable 1 00 0 0XXX XXXX 12 00XX XXXX 11 ERASE Erase Byte or Word 1 11 A8-A0 12 A7-A0 11 ERAL Erase All Memory 100 1 0XXX XXXX 12 10XX XXXX 11 WRAL Write All Memory with same Data 100 0 1XXX XXXX D7-D0 20 01XX XXXX D15-D0 27 1. X = Don't Care bit. 2. Address bit A8 is not decoded by the M93C56. 3. Address bit A7 is not decoded by the M93C56. Table 7. Instruction set for the M93C76 and M93C86 Instruction Description Start bit Op- code x8 Origination (ORG = 0) x16 Origination (ORG = 1) Address(1), (2) Data Required clock cycles Address (1) (3) Data Required clock cycles READ Read Data from Memory 1 10 A10-A0 Q7-Q0 A9-A0 Q15-Q0 WRITE Write Data to Memory 1 01 A10-A0 D7-D0 22 A9-A0 D15-D0 29 WEN Write Enable 1 00 11X XXXX XXXX 14 11 XXXX XXXX 13 WDS Write Disable 1 00 00X XXXX XXXX 14 00 XXXX XXXX 13 ERASE Erase Byte or Word 1 11 A10-A0 14 A9-A0 13 ERAL Erase All Memory 1 00 10X XXXX XXXX 14 10 XXXX XXXX 13 WRAL Write All Memory with same Data 100 01X XXXX XXXX D7-D0 22 01 XXXX XXXX D15-D0 29 1. X = Don't Care bit. 2. Address bit A10 is not decoded by the M93C76. 3. Address bit A9 is not decoded by the M93C76. |
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