Information
Device Program
flash (KB)
Block 0 (P-
Flash)
address
range
FlexNVM
(KB)
Block 1
(FlexNVM)
address
range
FlexRAM
(KB)
FlexRAM
address
range
MK20DX128VL
L7
128 0x0000_0000 –
0x0003_FFFF
32 0x1000_0000 –
0x1000_7FFF
2 0x1400_0000 –
0x1400_07FF
MK20DX256VL
L7
256 0x0000_0000 –
0x0003_FFFF
32 0x1000_0000 –
0x1000_7FFF
2 0x1400_0000 –
0x1400_07FF
MK20DX64VM
C7
64 0x0000_0000 –
0x0003_FFFF
32 0x1000_0000 –
0x1000_7FFF
2 0x1400_0000 –
0x1400_07FF
MK20DX128VM
C7
128 0x0000_0000 –
0x0003_FFFF
32 0x1000_0000 –
0x1000_7FFF
2 0x1400_0000 –
0x1400_07FF
MK20DX256VM
C7
256 0x0000_0000 –
0x0003_FFFF
32 0x1000_0000 –
0x1000_7FFF
2 0x1400_0000 –
0x1400_07FF
3.5.1.3 Flash Memory Map
The various flash memories and the flash registers are located at different base addresses
as shown in the following figure. The base address for each is specified in System
memory map.
Program flash
Flash configuration field
FlexNVM base address
Program flash base address
Flash memory base address
Registers
FlexNVM
FlexRAM
FlexRAM base address
Figure 3-19. Flash memory map
3.5.1.4 Flash Security
How flash security is implemented on this device is described in Chip Security.
Chapter 3 Chip Configuration
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
Freescale Semiconductor, Inc.
Preliminary
89
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