64 KByte Flash Module (S12FTMRG64K1V1)
MC9S12G Family Reference Manual Rev.1.27
948 NXP Semiconductors
27.4.4.5 EEPROM Commands
Table 27-29 summarizes the valid EEPROM commands along with the effects of the commands on the
EEPROM block.
0x02 Erase Verify Block Verify that a P-Flash block is erased.
0x03
Erase Verify
P-Flash Section
Verify that a given number of words starting at the address provided are erased.
0x04 Read Once
Read a dedicated 64 byte field in the nonvolatile information register in P-Flash block that
was previously programmed using the Program Once command.
0x06 Program P-Flash Program a phrase in a P-Flash block.
0x07 Program Once
Program a dedicated 64 byte field in the nonvolatile information register in P-Flash block
that is allowed to be programmed only once.
0x08 Erase All Blocks
Erase all P-Flash (and EEPROM) blocks.
An erase of all Flash blocks is only possible when the FPLDIS, FPHDIS, and FPOPEN
bits in the FPROT register and the DPOPEN bit in the EEPROT register are set prior to
launching the command.
0x09 Erase Flash Block
Erase a P-Flash (or EEPROM) block.
An erase of the full P-Flash block is only possible when FPLDIS, FPHDIS and FPOPEN
bits in the FPROT register are set prior to launching the command.
0x0A
Erase P-Flash
Sector
Erase all bytes in a P-Flash sector.
0x0B Unsecure Flash
Supports a method of releasing MCU security by erasing all P-Flash (and EEPROM)
blocks and verifying that all P-Flash (and EEPROM) blocks are erased.
0x0C
Verify Backdoor
Access Key
Supports a method of releasing MCU security by verifying a set of security keys.
0x0D
Set User Margin
Level
Specifies a user margin read level for all P-Flash blocks.
0x0E
Set Field Margin
Level
Specifies a field margin read level for all P-Flash blocks (special modes only).
Table 27-29. EEPROM Commands
FCMD Command Function on EEPROM Memory
0x01
Erase Verify All
Blocks
Verify that all EEPROM (and P-Flash) blocks are erased.
0x02 Erase Verify Block Verify that the EEPROM block is erased.
Table 27-28. P-Flash Commands
FCMD Command Function on P-Flash Memory
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