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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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SH32F2601P/032PR bảng dữ liệu(PDF) 39 Page - SINOWEALTH Electronic Ltd |
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SH32F2601P/032PR bảng dữ liệu(HTML) 39 Page - SINOWEALTH Electronic Ltd |
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39 / 370 page  SH32F2601 39 8.6.2 Flash Main Program Memory Block Unlock Control Register (FLASH_MKYR) Offset Address: 0x0004 Reset Value: 0x0000 0000 b31 b30 b29 b28 b27 b26 b25 b24 b23 b22 b21 b20 b19 b18 b17 b16 MKY[31:0] WO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 MKY[31:0] WO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit Symbol Description 31 ~ 0 MKY[31:0] Flash main program memory block unlock control bit Write the correct flash unlock value and operation unlock value sequentially to MKY[31:0] to unlock the operation of the main flash program storage block. After the unlock is successfully done, the MNLCK@FLASH_CR bit is cleared by hardware, and MKY[31:0] hardware is cleared. For flash single unlock operation, when MNLCK@FLASH_CR bit is cleared, only one programming or erasure operation to flash is allowed. After the operation is done, MNLCK@FLASH_CR bit is automatically set to 1, and main flash program storage block is locked again. For flash multiple unlock operation, when MNLCK@FLASH_CR bit is cleared, multiple programming or erasure operations are allowed. But after the operation is done, MNLCK@FLASH_CR bit can be automatically set to 1 by software, thus main flash program storage block can be locked again. These bits can only be written by software. 8.6.3 EEPROM-like Memory Block Unlock Control Register (FLASH_E2KYR) Offset Address: 0x0008 Reset Value: 0x0000 0000 b31 b30 b29 b28 b27 b26 b25 b24 b23 b22 b21 b20 b19 b18 b17 b16 E2KY[31:0] WO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 E2KY[31:0] WO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit Symbol Description 31 ~ 0 E2KY[31:0] EEPROM-like storage block unlock control byte Write the correct flash unlock value and operation unlock value sequentially to E2KY [31:0] can unlock EEPROM-like block. After the unlock operation is successfully done, the E2WRE@FLASH_CR bit is set to 1 by hardware, and E2KY [31:0] hardware is cleared. For flash single unlock operation, when the unlock operation is successfully done, only one programming or erase operation is allowed. After the operation is done, E2WRE@FLASH_CR bit is automatically set to 1 by hardware, and related flash blocks are locked again. For flash multiple unlock operation, when the unlock operation is successfully done, multiple programming or erasure operations are allowed. But after the operation is done, E2WRE@FLASH_CR bit must be set to 1 by software, thus related flash blocks can be locked again. These bits can only be written by software. |
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