MC9S12GRMV1 Datasheet, PDF (1016/1292 Pages) Freescale Semiconductor, Inc – MC9S12G Family Reference Manual and Data Sheet

96 KByte Flash Module (S12FTMRG96K1V1)
28.4.6.3 Erase Verify P-Flash Section Command
The Erase Verify P-Flash Section command will verify that a section of code in the P-Flash memory is
erased. The Erase Verify P-Flash Section command defines the starting point of the code to be verified and
the number of phrases.
Table 28-36. Erase Verify P-Flash Section Command FCCOB Requirements
CCOBIX[2:0]
FCCOB Parameters
000
0x03
Global address [17:16] of
a P-Flash block
001
Global address [15:0] of the first phrase to be verified
010
Number of phrases to be verified
Upon clearing CCIF to launch the Erase Verify P-Flash Section command, the Memory Controller will
verify the selected section of Flash memory is erased. The CCIF flag will set after the Erase Verify P-Flash
Section operation has completed. If the section is not erased, it means blank check failed, both MGSTAT
bits will be set.
Table 28-37. Erase Verify P-Flash Section Command Error Handling
Register
Error Bit
Error Condition
Set if CCOBIX[2:0] != 010 at command launch
ACCERR
Set if command not available in current mode (see Table 28-27)
Set if an invalid global address [17:0] is supplied see Table 28-3)¹
FSTAT
Set if a misaligned phrase address is supplied (global address [2:0] != 000)
Set if the requested section crosses a the P-Flash address boundary
FPVIOL None
MGSTAT1 Set if any errors have been encountered during the read² or if blank check failed.
MGSTAT0
Set if any non-correctable errors have been encountered during the read² or if
blank check failed.
1 _{As defined by the memory map for FTMRG96K1.}
2 _{As found in the memory map for FTMRG96K1.}
28.4.6.4 Read Once Command
The Read Once command provides read access to a reserved 64 byte field (8 phrases) located in the
nonvolatile information register of P-Flash. The Read Once field is programmed using the Program Once
command described in Section 28.4.6.6. The Read Once command must not be executed from the Flash
block containing the Program Once reserved field to avoid code runaway.
Table 28-38. Read Once Command FCCOB Requirements
CCOBIX[2:0]
000
FCCOB Parameters
0x04
Not Required
1018
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor