mc9s08ac16 Freescale Semiconductor, Inc, mc9s08ac16 Datasheet - Page 62

• Manufacturer Part Number: mc9s08ac16
• Description: Hcs08 Microcontrollers 8-bit Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 4 Memory
4.6.6
Only five command codes are recognized in normal user modes as shown in
Section 4.4.3, “Program and Erase Command
programming and erase operations.
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.
62
Reset
FCMD[7:0]
Field
7:0
W
R
FLASH Command Register (FCMD)
FCMD7
FLASH Command Bits — See
0
7
0
Page erase (512 bytes/page)
Byte program — burst mode
Mass erase (all FLASH)
FCMD6
Byte program
Blank check
0
6
0
Command
Figure 4-10. FLASH Command Register (FCMD)
Table 4-13. FCMD Register Field Descriptions
MC9S08AC16 Series Data Sheet, Rev. 0
FCMD5
Table 4-14. FLASH Commands
0
5
0
Table 4-14
PRELIMINARY
Execution” for a detailed discussion of FLASH
FCMD4
0
4
0
Description
FCMD
0x05
0x20
0x25
0x40
0x41
FCMD3
3
0
0
Equate File Label
FCMD2
mMassErase
mPageErase
mBurstProg
mByteProg
0
2
0
mBlank
Table
4-14. Refer to
Freescale Semiconductor
FCMD1
0
1
0
FCMD0
0
0
0