Information

12.2.17 Flash Configuration Register 1 (SIM_FCFG1)
For devices with FlexNVM: The reset value of EESIZE and DEPART are based on user
programming in user IFR via the PGMPART flash command.
For devices with program flash only: The EESIZE and DEPART filelds are not
applicable.
Address: SIM_FCFG1 is 4004_7000h base + 104Ch offset = 4004_804Ch
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
NVMSIZE PFSIZE 0 EESIZE 0 DEPART 0
W
Reset
x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x*
* Notes:
x = Undefined at reset.•
SIM_FCFG1 field descriptions
Field Description
31–28
NVMSIZE
FlexNVM size
This field specifies the amount of FlexNVM memory available on the device. Undefined values are
reserved.
0000 0 KB of FlexNVM
0111 128 KB of FlexNVM, 16 KB protection region
1001 256 KB of FlexNVM, 32 KB protection region
1111 256 KB of FlexNVM, 32 KB protection region
27–24
PFSIZE
Program flash size
This field specifies the amount of program flash memory available on the device. Undefined values are
reserved.
0111 128 KB of program flash memory, 4 KB protection region
1001 256 KB of program flash memory, 8 KB protection region
1011 512 KB of program flash memory, 16 KB protection region
1111 For devices with FlexNVM (SIM_FCFG2[PFLSH]=0): 256 KB of program flash, 8 KB protection
region. For devices without FlexNVM (SIM_FCFG2[PFLSH]=1): 512 KB of program flash memory,
16 KB protection region
23–20
Reserved
This read-only field is reserved and always has the value zero.
19–16
EESIZE
EEPROM size
EEPROM data size.
For devices with FlexNVM: This value is only valid with EEPROM partitioning.
0000 Reserved
Table continues on the next page...
Memory map and register definition
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
282 Freescale Semiconductor, Inc.