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M93S66-WDW6P データシート(PDF) 11 Page - STMicroelectronics |
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M93S66-WDW6P データシート(HTML) 11 Page - STMicroelectronics |
11 / 34 page 11/34 M93S66, M93S56, M93S46 be started, and the addressed location will not be programmed. While the M93Sx6 is performing a write cycle, but after a delay (tSLSH) before the status information becomes available, Chip Select Input (S) can be driven High to monitor the status of the write cycle: Serial Data Output (Q) is driven Low while the M93Sx6 is still busy, and High when the cycle is complete, and the M93Sx6 is ready to receive a new instruction. The M93Sx6 ignores any data on the bus while it is busy on a write cycle. Once the M93Sx6 is Ready, Serial Data Output (Q) is driven High, and remains in this state until a new start bit is decoded or the Chip Select Input (S) is brought Low. Programming is internally self-timed, so the exter- nal Serial Clock (C) may be disconnected or left running after the start of a write cycle. Write All The Write All Memory with same Data (WRAL) in- struction is valid only after the Protection Register has been cleared by executing a Protection Reg- ister Clear (PRCLEAR) instruction. The Write All Memory with same Data (WRAL) instruction simul- taneously writes the whole memory with the same data word given in the instruction. Write Enable (W) must be held High before and during the instruction. Input address and data, on Serial Data Input (D) are sampled on the rising edge of Serial Clock (C). After the last data bit has been sampled, the Chip Select Input (S) must be taken Low before the next rising edge of Serial Clock (C). If Chip Select Input (S) is brought Low before or after this specific time frame, the self-timed programming cycle will not be started, and the addressed location will not be programmed. While the M93Sx6 is performing a write cycle, but after a delay (tSLSH) before the status information becomes available, Chip Select Input (S) can be driven High to monitor the status of the write cycle: Serial Data Output (Q) is driven Low while the M93Sx6 is still busy, and High when the cycle is complete, and the M93Sx6 is ready to receive a new instruction. The M93Sx6 ignores any data on the bus while it is busy on a write cycle. Once the M93Sx6 is Ready, Serial Data Output (Q) is driven High, and remains in this state until a new start bit is decoded or the Chip Select Input (S) is brought Low. Programming is internally self-timed, so the exter- nal Serial Clock (C) may be disconnected or left running after the start of a write cycle. |
同様の部品番号 - M93S66-WDW6P |
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同様の説明 - M93S66-WDW6P |
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