Program flash
1
Program flash
0
To MCU's
flash controller
Interrupt
Control
registers
Status
registers
Register access
Memory controller
Figure 29-1. Flash Block Diagram
29.1.3
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
flash memory 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 flash memory module.
Flash block — A macro within the flash memory module which provides the nonvolatile
memory storage.
Flash Memory Module — All flash blocks plus a flash management unit providing
high-level control and an interface to MCU buses.
HSRUN — An MCU power mode enabling high-speed access to the memory resources
in the flash module. The user has no access to the flash command set when the MCU is in
HSRUN mode.
Chapter 29 Flash Memory Module (FTFA)
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 631
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