Information

FCMD Command Program flash Data flash FlexRAM Function
0x01 Read 1s Section × × Verify that a given
number of program
flash or data flash
locations from a
starting address
are erased.
0x02 Program Check × × Tests previously-
programmed
locations at margin
read levels.
0x03 Read Resource IFR, ID IFR Read 4 bytes from
program flash IFR,
data flash IFR, or
version ID.
0x06 Program Longword × × Program 4 bytes in
a program flash
block or a data
flash block.
0x08 Erase Flash Block × × Erase a program
flash block or data
flash block. An
erase of any flash
block is only
possible when
unprotected.
FlexNVM block
must not be
partitioned for
EEPROM.
0x09 Erase Flash Sector × × Erase all bytes in a
program flash or
data flash sector.
0x0B Program Section × × × Program data from
the Section
Program Buffer to
a program flash or
data flash block.
0x40 Read 1s All Blocks × × Verify that all
program flash,
data flash blocks,
EEPROM backup
data records, and
data flash IFR are
erased then
release MCU
security.
0x41 Read Once IFR Read 4 bytes of a
dedicated 64 byte
field in the program
flash IFR.
Table continues on the next page...
Flash Operation in Low-Power Modes
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
530 Freescale Semiconductor, Inc.