mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 486

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

Introduction
23.1.3 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.
Data flash memory — Partitioned from the FlexNVM block, the data flash memory
provides nonvolatile storage for user data, boot code, and additional code store.
Data flash sector — The data flash sector is the smallest portion of the data flash
memory that can be erased.
EEPROM — Using a built-in filing system, the FTFL module emulates the
characteristics of an EEPROM by effectively providing a high-endurance, byte-writeable
(program and erase) NVM.
EEPROM backup data header — The EEPROM backup data header is comprised of a
32-bit field found in EEPROM backup data memory which contains information used by
the EEPROM filing system to determine the status of a specific EEPROM backup flash
sector.
486
Register access
flash controller
Interrupt
To MCU's
registers
registers
Control
Status
MCF51JF128 Reference Manual, Rev. 2, 03/2011
Figure 23-1. FTFL Block Diagram
Memory controller
Preliminary
FlexRAM
Freescale Semiconductor, Inc.
Program flash
EEPROM backup
FlexNVM
Data flash