S912XHY128F0VLM Datasheet, PDF (652/802 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

128 KByte Flash Module (S12XFTMR128K1V1)
Table 19-32. Erase Verify P-Flash Section Command FCCOB Requirements
CCOBIX[2:0]
FCCOB Parameters
000
0x03
Global address [22:16] 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.
Table 19-33. Erase Verify P-Flash Section Command Error Handling
Register
FSTAT
Error Bit
ACCERR
FPVIOL
MGSTAT1
MGSTAT0
Error Condition
Set if CCOBIX[2:0] != 010 at command launch
Set if command not available in current mode (see Table 19-25)
Set if an invalid global address [22:0] is supplied
Set if a misaligned phrase address is supplied (global address [2:0] != 000)
Set if the requested section crosses a Kbyte boundary
None
Set if any errors have been encountered during the read
Set if any non-correctable errors have been encountered during the read
19.3.2.4 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 block 0. The Read Once field is programmed using the
Program Once command described in Section 19.3.2.6. The Read Once command must not be executed
from the Flash block containing the Program Once reserved field to avoid code runaway.
Table 19-34. Read Once Command FCCOB Requirements
CCOBIX[2:0]
000
001
010
011
100
101
FCCOB Parameters
0x04
Not Required
Read Once phrase index (0x0000 - 0x0007)
Read Once word 0 value
Read Once word 1 value
Read Once word 2 value
Read Once word 3 value
Upon clearing CCIF to launch the Read Once command, a Read Once phrase is fetched and stored in the
FCCOB indexed register. The CCIF flag will set after the Read Once operation has completed. Valid
MC9S12XHY-Family Reference Manual, Rev. 1.01
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