Datasheet

64 KByte Flash Module (S12XFTMR64K1V1)
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor 647
20.4.2.10 Unsecure Flash Command
The Unsecure Flash command will erase the entire P-Flash and D-Flash memory space and, if the erase is
successful, will release security.
Upon clearing CCIF to launch the Unsecure Flash command, the Memory Controller will erase the entire
P-Flash and D-Flash memory space and verify that it is erased. If the Memory Controller verifies that the
entire Flash memory space was properly erased, security will be released. If the erase verify is not
successful, the Unsecure Flash operation sets MGSTAT1 and terminates without changing the security
state. During the execution of this command (CCIF=0) the user must not write to any Flash module
register. The CCIF flag is set after the Unsecure Flash operation has completed.
Table 20-48. Erase P-Flash Sector Command Error Handling
Register Error Bit Error Condition
FSTAT
ACCERR
Set if CCOBIX[2:0] != 001 at command launch
Set if command not available in current mode (see Table 20-28)
Set if an invalid global address [22:16] is supplied
1
1
As defined by the memory map for FTMR128K1.
Set if a misaligned phrase address is supplied (global address [2:0] != 000)
FPVIOL Set if the selected P-Flash sector is protected
MGSTAT1 Set if any errors have been encountered during the verify operation
MGSTAT0
Set if any non-correctable errors have been encountered during the verify
operation
Table 20-49. Unsecure Flash Command FCCOB Requirements
CCOBIX[2:0] FCCOB Parameters
000 0x0B Not required
Table 20-50. Unsecure Flash Command Error Handling
Register Error Bit Error Condition
FSTAT
ACCERR
Set if CCOBIX[2:0] != 000 at command launch
Set if command not available in current mode (see Table 20-28)
FPVIOL Set if any area of the P-Flash or D-Flash memory is protected
MGSTAT1 Set if any errors have been encountered during the verify operation
1
1
As found in the memory map for FTMR128K1.
MGSTAT0
Set if any non-correctable errors have been encountered during the verify
operation
1