Information

NOTE
When set, the Access Error (ACCERR) and Flash Protection
Violation (FPVIOL) bits in this register prevent the launch of
any more commands until the flag is cleared (by writing a one
to it).
Address: FTFL_FSTAT is 4002_0000h base + 0h offset = 4002_0000h
Bit 7 6 5 4 3 2 1 0
Read CCIF
RDCOLERR
ACCERR FPVIOL 0 MGSTAT0
Write w1c
w1c
w1c w1c
Reset
0 0 0 0 0 0 0 0
FTFL_FSTAT field descriptions
Field Description
7
CCIF
Command Complete Interrupt Flag
The CCIF flag indicates that a FTFL command has completed. The CCIF flag is cleared by writing a 1 to
CCIF to launch a command, and CCIF stays low until command completion or command violation.
The CCIF bit is reset to 0 but is set to 1 by the memory controller at the end of the reset initialization
sequence. Depending on how quickly the read occurs after reset release, the user may or may not see
the 0 hardware reset value.
0 FTFL command in progress
1 FTFL command has completed
6
RDCOLERR
FTFL Read Collision Error Flag
The RDCOLERR error bit indicates that the MCU attempted a read from an FTFL resource that was being
manipulated by an FTFL command (CCIF=0). Any simultaneous access is detected as a collision error by
the block arbitration logic. The read data in this case cannot be guaranteed. The RDCOLERR bit is
cleared by writing a 1 to it. Writing a 0 to RDCOLERR has no effect.
0 No collision error detected
1 Collision error detected
5
ACCERR
Flash Access Error Flag
The ACCERR error bit indicates an illegal access has occurred to an FTFL resource caused by a violation
of the command write sequence or issuing an illegal FTFL command. While ACCERR is set, the CCIF
flag cannot be cleared to launch a command. The ACCERR bit is cleared by writing a 1 to it. Writing a 0 to
the ACCERR bit has no effect.
0 No access error detected
1 Access error detected
4
FPVIOL
Flash Protection Violation Flag
The FPVIOL error bit indicates an attempt was made to program or erase an address in a protected area
of program flash memory during a command write sequence . While FPVIOL is set, the CCIF flag cannot
be cleared to launch a command. The FPVIOL bit is cleared by writing a 1 to it. Writing a 0 to the FPVIOL
bit has no effect.
0 No protection violation detected
1 Protection violation detected
Table continues on the next page...
Memory Map and Registers
K20 Sub-Family Reference Manual, Rev. 6, Nov 2011
610 Freescale Semiconductor, Inc.