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 FTFL 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 2 Kbytes
• 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 one logical program flash block is possible while programming or
erasing data in the other logical program flash block
28.1.1.2 Program Acceleration RAM Features
• RAM to support section programming
28.1.1.3 Other FTFL Module Features
• Internal high-voltage supply generator for flash memory program and erase
operations
• Optional interrupt generation upon flash command completion
• Supports MCU security mechanisms which prevent unauthorized access to the flash
memory contents
Introduction
K20 Sub-Family Reference Manual, Rev. 6, Nov 2011
604 Freescale Semiconductor, Inc.