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MC9S08RD60PE Datasheet(PDF) 55 Page - Motorola, Inc |
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MC9S08RD60PE Datasheet(HTML) 55 Page - Motorola, Inc |
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55 / 232 page  SoC Guide — MC9S08RG60/D Rev 1.10 Freescale Semiconductor 55 MC9S08RC/RD/RE/RG FCCF — FLASH Command Complete Flag FCCF is set automatically when the command buffer is empty and no command is being processed. FCCF is cleared automatically when a new command is started (by writing 1 to FCBEF to register a command). Writing to FCCF has no meaning or effect. 1 = All commands complete 0 = Command in progress FPVIOL — Protection Violation Flag FPVIOL is set automatically when FCBEF is cleared to register a command that attempts to erase or program a location in a protected block (the erroneous command is ignored). FPVIOL is cleared by writing a 1 to FPVIOL. 1 = An attempt was made to erase or program a protected location. 0 = No protection violation. FACCERR — Access Error Flag FACCERR is set automatically when the proper command sequence is not followed exactly (the erroneous command is ignored), if a program or erase operation is attempted before the FCDIV register has been initialized, or if the MCU enters stop while a command was in progress. For a more detailed discussion of the exact actions that are considered access errors, see 4.4.5 Access Errors. FACCERR is cleared by writing a 1 to FACCERR. Writing a 0 to FACCERR has no meaning or effect. 1 = An access error has occurred. 0 = No access error. FBLANK — FLASH Verified as All Blank (erased) Flag FBLANK is set automatically at the conclusion of a blank check command if the entire FLASH array was verified to be erased. FBLANK is cleared by clearing FCBEF to write a new valid command. Writing to FBLANK has no meaning or effect. 1 = After a blank check command is completed and FCCF = 1, FBLANK = 1 indicates the FLASH array is completely erased (all $FF). 0 = After a blank check command is completed and FCCF = 1, FBLANK = 0 indicates the FLASH array is not completely erased. 4.6.6 FLASH Command Register (FCMD) Only four command codes are recognized in normal user modes as shown in Table 4-10. Refer to 4.4.3 Program and Erase Command Execution for a detailed discussion of FLASH programming and erase operations. Bit 7 6 54321 Bit 0 Read: 0 0 000000 Write: FCMD7 FCMD6 FCMD5 FCMD4 FCMD3 FCMD2 FCMD1 FCMD0 Reset: 0 0 000000 Figure 4-9 FLASH Command Register (FCMD) |
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