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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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PSD813F2 数据表(PDF) 23 Page - STMicroelectronics |
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PSD813F2 数据表(HTML) 23 Page - STMicroelectronics |
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23 / 110 page  23/110 PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2 Reading the Erase/Program Status Bits The PSD provides several status bits to be used by the MCU to confirm the completion of an Erase or Program cycle of Flash memory. These status bits minimize the time that the MCU spends per- forming these tasks and are defined in Table 10. The status bits can be read as many times as needed. For Flash memory, the MCU can perform a READ operation to obtain these status bits while an Erase or Program instruction is being executed by the embedded algorithm. See the section entitled PROGRAMMING FLASH MEMORY, page 25 for details. Table 10. Status Bit Note: 1. X = Not guaranteed value, can be read either '1' or ’0.’ 2. DQ7-DQ0 represent the Data Bus bits, D7-D0. 3. FS0-FS7 and CSBOOT0-CSBOOT3 are active High. Functional Block FS0-FS7/CSBOOT0- CSBOOT3 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 Flash Memory VIH Data Polling Toggle Flag Error Flag X Erase Time- out XX X |
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