Datasheet

Chapter 4 Memory
MC9S08AC16 Series Data Sheet, Rev. 9
62 Freescale Semiconductor
All other command codes are illegal and generate an access error.
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.
Table 4-13. FCMD Register Field Descriptions
Field Description
7:0
FCMD[7:0]
FLASH Command Bits — See Ta ble 4 -14
Table 4-14. FLASH Commands
Command FCMD Equate File Label
Blank check 0x05 mBlank
Byte program 0x20 mByteProg
Byte program — burst mode 0x25 mBurstProg
Page erase (512 bytes/page) 0x40 mPageErase
Mass erase (all FLASH) 0x41 mMassErase