FTFA_FSTAT field descriptions (continued)Field Description0 Flash command in progress1 Flash command has completed6RDCOLERRFlash Read Collision Error FlagThe RDCOLERR error bit indicates that the MCU attempted a read from a flash memory resource thatwas being manipulated by a flash command (CCIF=0). Any simultaneous access is detected as a collisionerror by the block arbitration logic. The read data in this case cannot be guaranteed. The RDCOLERR bitis cleared by writing a 1 to it. Writing a 0 to RDCOLERR has no effect.0 No collision error detected1 Collision error detected5ACCERRFlash Access Error FlagThe ACCERR error bit indicates an illegal access has occurred to a flash memory resource caused by aviolation of the command write sequence or issuing an illegal flash command. While ACCERR is set, theCCIF flag cannot be cleared to launch a command. The ACCERR bit is cleared by writing a 1 to it. Writinga 0 to the ACCERR bit has no effect.0 No access error detected1 Access error detected4FPVIOLFlash Protection Violation FlagThe FPVIOL error bit indicates an attempt was made to program or erase an address in a protected areaof program flash memory during a command write sequence . While FPVIOL is set, the CCIF flag cannotbe cleared to launch a command. The FPVIOL bit is cleared by writing a 1 to it. Writing a 0 to the FPVIOLbit has no effect.0 No protection violation detected1 Protection violation detected3–1ReservedThis field is reserved.This read-only field is reserved and always has the value 0.0MGSTAT0Memory Controller Command Completion Status FlagThe MGSTAT0 status flag is set if an error is detected during execution of a flash command or during theflash reset sequence. As a status flag, this bit cannot (and need not) be cleared by the user like the othererror flags in this register.The value of the MGSTAT0 bit for "command-N" is valid only at the end of the "command-N" executionwhen CCIF=1 and before the next command has been launched. At some point during the execution of"command-N+1," the previous result is discarded and any previous error is cleared.27.33.2 Flash Configuration Register (FTFA_FCNFG)This register provides information on the current functional state of the flash memorymodule.The erase control bits (ERSAREQ and ERSSUSP) have write restrictions. Theunassigned bits read as noted and are not writable.Memory Map and RegistersKL04 Sub-Family Reference Manual, Rev. 3.1, November 2012386 Freescale Semiconductor, Inc.
