MC9S08RG60 Datasheet, PDF (55/232 Pages) Motorola, Inc – Microcontrollers

SoC Guide — MC9S08RG60/D Rev 1.10
FCCF — FLASH Command Complete Flag
FCCF is set automatically when the command buffer is empty and no command is being processed.
FCCF is cleared automatically when a new command is started (by writing 1 to FCBEF to register a
command). Writing to FCCF has no meaning or effect.
1 = All commands complete
0 = Command in progress
FPVIOL — Protection Violation Flag
FPVIOL is set automatically when FCBEF is cleared to register a command that attempts to erase or
program a location in a protected block (the erroneous command is ignored). FPVIOL is cleared by
writing a 1 to FPVIOL.
1 = An attempt was made to erase or program a protected location.
0 = No protection violation.
FACCERR — Access Error Flag
FACCERR is set automatically when the proper command sequence is not followed exactly (the
erroneous command is ignored), if a program or erase operation is attempted before the FCDIV register
has been initialized, or if the MCU enters stop while a command was in progress. For a more detailed
discussion of the exact actions that are considered access errors, see 4.4.5 Access Errors. FACCERR
is cleared by writing a 1 to FACCERR. Writing a 0 to FACCERR has no meaning or effect.
1 = An access error has occurred.
0 = No access error.
FBLANK — FLASH Verified as All Blank (erased) Flag
FBLANK is set automatically at the conclusion of a blank check command if the entire FLASH array
was verified to be erased. FBLANK is cleared by clearing FCBEF to write a new valid command.
Writing to FBLANK has no meaning or effect.
1 = After a blank check command is completed and FCCF = 1, FBLANK = 1 indicates the FLASH
array is completely erased (all $FF).
0 = After a blank check command is completed and FCCF = 1, FBLANK = 0 indicates the FLASH
array is not completely erased.
4.6.6 FLASH Command Register (FCMD)
Only four command codes are recognized in normal user modes as shown in Table 4-10. Refer to
4.4.3 Program and Erase Command Execution for a detailed discussion of FLASH programming and erase
operations.
Bit 7
6
5
4
3
2
Read: 0
0
0
0
0
0
Write: FCMD7 FCMD6 FCMD5 FCMD4 FCMD3 FCMD2
Reset: 0
0
0
0
0
0
Figure 4-9 FLASH Command Register (FCMD)
1
0
FCMD1
0
Bit 0
0
FCMD0
0
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