MC9S08DZ16 FREESCALE [Freescale Semiconductor, Inc], MC9S08DZ16 Datasheet - Page 67

• Manufacturer Part Number: MC9S08DZ16
• Description: 8-Bit HCS08 Central Processor Unit (CPU)
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

4.5.11.6
Only six command codes are recognized in normal user modes, as shown in
command codes are illegal and generate an access error. Refer to
Command
operations.
It is not necessary to perform a blank check command after a mass erase operation. Only blank check is
required as part of the security unlocking mechanism.
Freescale Semiconductor
FACCERR
FBLANK
Reset
Field
4
2
W
R
Execution,” for a detailed discussion of Flash and EEPROM programming and erase
Access Error Flag — FACCERR is set automatically when the proper command sequence is not obeyed 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
writing a 1 to FACCERR. Writing a 0 to FACCERR has no meaning or effect.
0 No access error.
1 An access error has occurred.
Verified as All Blank (erased) Flag — FBLANK is set automatically at the conclusion of a blank check command
if the entire Flash or EEPROM 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.
0 After a blank check command is completed and FCCF = 1, FBLANK = 0 indicates the Flash or EEPROM array
1 After a blank check command is completed and FCCF = 1, FBLANK = 1 indicates the Flash or EEPROM array
Flash and EEPROM Command Register (FCMD)
0
0
7
is not completely erased.
is completely erased (all 0xFFFF).
Figure 4-10. Flash and EEPROM Command Register (FCMD)
Table 4-15. FSTAT Register Field Descriptions (continued)
0
0
6
Sector erase abort
Burst program
Byte program
Sector erase
Blank check
Mass erase
Command
Table 4-16. Flash and EEPROM Commands
MC9S08DZ60 Series Data Sheet, Rev. 4
0
0
5
0
0
4
FCMD
Description
0x05
0x20
0x25
0x40
0x41
0x47
FCMD
Section 4.5.6, “Access
3
0
0
Section 4.5.3, “Program and Erase
Equate File Label
mSectorErase
mEraseAbort
mMassErase
mBurstProg
mByteProg
mBlank
0
0
2
Table
Errors.” FACCERR is cleared by
4-16. All other
0
0
1
Chapter 4 Memory
0
0
0
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