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S9S08QD2CSC Datasheet(PDF) 49 Page - Freescale Semiconductor, Inc |
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S9S08QD2CSC Datasheet(HTML) 49 Page - Freescale Semiconductor, Inc |
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49 / 198 page  Chapter 4 Memory Map and Register Definition MC9S08QD4 Series MCU Data Sheet, Rev. 6 Freescale Semiconductor 49 4.7.6 Flash Command Register (FCMD) Only five command codes are recognized in normal user modes as shown in Table 4-13. Refer to Section 4.5.3, “Program and Erase Command Execution,” for a detailed discussion of flash programming and erase operations. All other command codes are illegal and generate an access error. It is not necessary to perform a blank check command after a mass erase operation. Only blank check is required as part of the security unlocking mechanism. 76 54 321 0 R 000 00 000 WFCMD Reset 000 00 000 = Unimplemented or Reserved Figure 4-10. Flash Command Register (FCMD) Table 4-13. Flash Commands Command FCMD Equate File Label Blank check 0x05 mBlank Byte program 0x20 mByteProg Byte program — burst mode 0x25 mBurstProg Page erase (512 bytes/page) 0x40 mPageErase Mass erase (all flash) 0x41 mMassErase |
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