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ST7L15 Folha de dados(PDF) 17 Page - STMicroelectronics |
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ST7L15 Folha de dados(HTML) 17 Page - STMicroelectronics |
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17 / 138 page ![]() ST7L15, ST7L19 17/138 DATA EEPROM (cont’d) 5.7 REGISTER DESCRIPTION EEPROM CONTROL/STATUS REGISTER (EEC- SR) Read/Write Reset Value: 0000 0000 (00h) Bits 7:2 = Reserved, forced by hardware to 0. Bit 1 = E2LAT Latch Access Transfer This bit is set by software. It is cleared by hard- ware at the end of the programming cycle. It can only be cleared by software if the E2PGM bit is cleared. 0: Read mode 1: Write mode Bit 0 = E2PGM Programming control and status This bit is set by software to begin the programming cycle. At the end of the programming cycle, this bit is cleared by hardware. 0: Programming finished or not yet started 1: Programming cycle is in progress Note: If the E2PGM bit is cleared during the pro- gramming cycle, the memory data is not guaran- teed Table 3. Data EEPROM Register Map and Reset Values 70 00 00 00 E2LAT E2PGM Address (Hex.) Register Label 765 4321 0 0030h EECSR Reset Value 000 000 E2LAT 0 E2PGM 0 1 |
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