Datasheet

Table 4-29. Program flash command error handling

NVM_FSTAT

ACCERR

Set if CCOBIX[2:0] ≠ 011 or 101 at command launch

Set if command not available in current mode (see Table 4-9)

Set if an invalid global address [23:0] is supplied (see Table 4-6)

Set if a misaligned longword address is supplied (global address [1:0] !=

00)

Set if the requested group of words breaches the end of the flash block.

FPVIOL Set if the global address [23:0] points to a protected data

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

1. As defined by the memory map of NVM

4.5.2.9.6 Program once command

The program once command restricts programming to a reserved 64 byte field (8 phrases)

in the nonvolatile information register located in flash. The program once reserved field

can be read using the read once command as described in Read once command. The

program once command must be issued only because the nonvolatile information register

in flash cannot be erased. To avoid code runaway, the read once command must not be

executed from the flash block containing the program once reserved field.

Table 4-30. Program once command FCCOB requirements

CCOBIX[2:0] FCCOB parameters

000 0x07 Not required

001 Program Once phrase index (0x000 – 0x0007)

010 Program once Word 0 value

011 Program once Word 1value

100 Program once Word 2 value

101 Program once Word 3 value

Upon clearing FSTAT[CCIF] to launch the program once command, the memory

controller first verifies that the selected phrase is erased. If erased, then the selected

phrase will be programmed and then verified with read back. The FSTAT[CCIF] flag will

remain clear, setting only after the program once operation has completed.

Flash and EEPROM

MC9S08PA60 Reference Manual, Rev. 1, 9/2012

96 Freescale Semiconductor, Inc.