NXP Semiconductors K32 L2A Series, Reference Manual, Page: 609 / 1379

Address Range Size (Bytes) Field Description
0xC0 – 0xC3 4 Erasable Program Once Field (index = 0x30)
0xC4 – 0xC7 4 Erasable Program Once Field (index = 0x31)
0xC8 – 0xCB 4 Erasable Program Once Field (index = 0x32)
0xCC – 0xCF 4 Erasable Program Once Field (index = 0x33)
24.3.3.1 Erasable Program Once Field
The Program Once Field in the program flash erasable IFR with indexes 0x30 - 0x33
provides 16 bytes of user data storage that can be programmed using the Program Once
command and read using the Read Once command. The program flash erasable IFR is
erased using the Erase All Blocks command, Erase All Blocks Unsecure command, and
using the external erase all feature (mass erase).
24.3.4 Register Descriptions
The flash memory module contains a set of memory-mapped control and status registers.
NOTE
While a command is running (FSTAT[CCIF]=0), register
writes are not accepted to any register except FCNFG and
FSTAT. The no-write rule is relaxed during the start-up reset
sequence, prior to the initial rise of CCIF. During this
initialization period the user may write any register. All register
writes are also disabled (except for registers FCNFG and
FSTAT) whenever an erase suspend request is active
(FCNFG[ERSSUSP]=1).
FTFA memory map
Absolute
address
(hex)
Register name
Width
(in bits)
Access Reset value
Section/
page
4002_0000 Flash Status Register (FTFA_FSTAT) 8 R/W 00h
24.3.4.1/
611
4002_0001 Flash Configuration Register (FTFA_FCNFG) 8 R/W 00h
24.3.4.2/
613
4002_0002 Flash Security Register (FTFA_FSEC) 8 R Undefined
24.3.4.3/
614
4002_0003 Flash Option Register (FTFA_FOPT) 8 R Undefined
24.3.4.4/
615
Table continues on the next page...
Chapter 24 Flash Memory Module (FTFA)
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 609