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M93C-76MB7TG Fiches technique(PDF) 11 Page - STMicroelectronics |
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M93C-76MB7TG Fiches technique(HTML) 11 Page - STMicroelectronics |
11 / 31 page 11/31 M93C86, M93C76, M93C66, M93C56, M93C46 Erase All The Erase All Memory (ERAL) instruction erases the whole memory (all memory bits are set to 1). The format of the instruction requires that a dum- my address be provided. The Erase cycle is con- ducted in the same way as the Erase instruction (ERASE). The completion of the cycle can be de- tected by monitoring the Ready/Busy line, as de- scribed in the READY/BUSY STATUS section. Write All As with the Erase All Memory (ERAL) instruction, the format of the Write All Memory with same Data (WRAL) instruction requires that a dummy ad- dress be provided. As with the Write Data to Mem- ory (WRITE) instruction, the format of the Write All Memory with same Data (WRAL) instruction re- quires that an 8-bit data byte, or 16-bit data word, be provided. This value is written to all the ad- dresses of the memory device. The completion of the cycle can be detected by monitoring the Ready/Busy line, as described next. Figure 6. WRAL Sequence Note: For the meanings of Xn and Dn, please see Table 5., Table 6. and Table 7.. AI00880C S WRITE ALL DATA IN D Q ADDR OP CODE Dn D0 BUSY READY CHECK STATUS 1 0 0 0 1 Xn X0 |
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