Chapter 25 256 KByte Flash Module (S12XFTM256K2V1)
MC9S12XE-Family Reference Manual , Rev. 1.19
936
Freescale Semiconductor
25.4.2.10 Erase P-Flash Sector Command
The Erase P-Flash Sector operation will erase all addresses in a P-Flash sector.
Upon clearing CCIF to launch the Erase P-Flash Sector command, the Memory Controller will erase the
selected Flash sector and then verify that it is erased. The CCIF flag will be set after the Erase P-Flash
Sector operation has completed.
25.4.2.11 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
Table 25-51. Erase P-Flash Sector Command FCCOB Requirements
CCOBIX[2:0]
FCCOB Parameters
000
0x0A
Global address [22:16] to identify
P-Flash block to be erased
001
Global address [15:0] anywhere within the sector to be erased.
Refer to
for the P-Flash sector size.
Table 25-52. 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 a Load Data Field command sequence is currently active
Set if command not available in current mode (see
)
Set if an invalid global address [22:16] is supplied
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
FERSTAT
EPVIOLIF
None
Table 25-53. Unsecure Flash Command FCCOB Requirements
CCOBIX[2:0]
FCCOB Parameters
000
0x0B
Not required
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