Chapter 26 384 KByte Flash Module (S12XFTM384K2V1)
MC9S12XE-Family Reference Manual , Rev. 1.19
Freescale Semiconductor
987
26.4.1.4
P-Flash Commands
summarizes the valid P-Flash commands along with the effects of the commands on the P-
Flash block and other resources within the Flash module.
Table 26-31. P-Flash Commands
FCMD
Command
Function on P-Flash Memory
0x01
Erase Verify All
Blocks
Verify that all P-Flash (and D-Flash) blocks are erased.
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 0 that
was previously programmed using the Program Once command.
0x05
Load Data Field
Load data for simultaneous multiple P-Flash block operations.
0x06
Program P-Flash
Program a phrase in a P-Flash block and any previously loaded phrases for any other P-
Flash block (see Load Data Field command).
0x07
Program Once
Program a dedicated 64 byte field in the nonvolatile information register in P-Flash block 0
that is allowed to be programmed only once.
0x08
Erase All Blocks
Erase all P-Flash (and D-Flash) blocks.
An erase of all Flash blocks is only possible when the FPLDIS, FPHDIS, and FPOPEN bits
in the FPROT register and the EPDIS and EPOPEN bits in the EPROT register are set prior
to launching the command.
0x09
Erase P-Flash Block
Erase a single P-Flash 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 D-Flash) blocks
and verifying that all P-Flash (and D-Flash) 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).
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
S12XE
products
in
208
MAPBGA
packages