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MC68HC908AP16CFB 데이터시트(PDF) 63 Page - Motorola, Inc |
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MC68HC908AP16CFB 데이터시트(HTML) 63 Page - Motorola, Inc |
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63 / 440 page ![]() FLASH Memory FLASH Protection MC68HC908AP Family — Rev. 2.5 Data Sheet MOTOROLA 63 BPR0 is used only for BPR[7:0] = $FF, for no block protection. The resultant 16-bit address is used for specifying the start address of the FLASH memory for block protection. The FLASH is protected from this start address to the end of FLASH memory, at $FFFF. With this mechanism, the protect start address can be X000, X200, X400, X0600, X800, XA00, XC00, or XE00 (at page boundaries — 512 bytes) within the FLASH memory. Examples of protect start address: Table 4-1 FLASH Block Protect Range BPR[7:0] Protected Range $00 to $09 The entire FLASH memory is protected. $0A or $0B (0000 101x) $0A00 to $FFFF $0C or $0D (0000 110x) $0C00 to $FFFF and so on... $FA or $FB (1111 1101x) $FA00 to $FFFF $FC or $FD or $FE $FFCF to $FFFF $FF The entire FLASH memory is NOT protected.(1) Notes: 1. Except for the mask option register ($FFCF) and the 48-byte user vectors ($FFD0–$FFFF). These FLASH locations are always protected. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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