Information

states. Therefore, it is recommended that each flash block or
sector be re-erased immediately prior to factory programming
to ensure that the full data retention capability is achieved.
28.1.1 Features
The flash memory module includes the following features.
NOTE
See the device's Chip Configuration details for the exact
amount of flash memory available on your device.
28.1.1.1 Program Flash Memory Features
• Sector size of 1 Kbyte
• Program flash protection scheme prevents accidental program or erase of stored data
• Automated, built-in, program and erase algorithms with verify
• Section programming for faster bulk programming times
• Read access to program flash memory possible while programming or erasing data in
the data flash memory or FlexRAM
28.1.1.2 FlexNVM Memory Features
When FlexNVM is partitioned for data flash memory:
• Sector size of 1 Kbyte
• Protection scheme prevents accidental program or erase of stored data
• Automated, built-in program and erase algorithms with verify
• Section programming for faster bulk programming times
• Read access to data flash memory possible while programming or erasing data in the
program flash memory
Introduction
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
498 Freescale Semiconductor, Inc.