Information

28.1.2 Block Diagram
The block diagram of the FTFL module is shown in the following figure.
Program flash
1
Programming
acceleration
RAM
Program flash
0
To MCU's
flash controller
Interrupt
Control
registers
Status
registers
Register access
Memory controller
Figure 28-1. FTFL Block Diagram
28.1.3 Glossary
Command write sequence — A series of MCU writes to the Flash FCCOB register
group that initiates and controls the execution of Flash algorithms that are built into the
FTFL module.
Endurance — The number of times that a flash memory location can be erased and
reprogrammed.
FCCOB (Flash Common Command Object) — A group of flash registers that are used
to pass command, address, data, and any associated parameters to the memory controller
in the FTFL module.
Flash block — A macro within the FTFL module which provides the nonvolatile
memory storage.
FTFL Module — All flash blocks plus a flash management unit providing high-level
control and an interface to MCU buses.
Chapter 28 Flash Memory Module (FTFL)
K20 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc. 605