Ftfa_Fopt Register; Sram; Sram Sizes; Sram Ranges - NXP Semiconductors MKL27Z128VFM4 Reference Manual

4.2.5 FTFA_FOPT register

The flash memory's FTFA_FOPT register allows the user to customize the operation of
the MCU at boot time. See
4.3

SRAM

4.3.1 SRAM sizes

This device contains SRAM which could be accessed by bus masters through the cross-
bar switch. The amount of SRAM for the devices covered in this document is shown in
the following table.
MKL27Z128VFM4
MKL27Z256VFM4
MKL27Z128VFT4
MKL27Z256VFT4
MKL27Z128VMP4
MKL27Z256VMP4
MKL27Z128VLH4
MKL27Z256VLH4

4.3.2 SRAM ranges

The on-chip SRAM is split into two ranges, 1/4 is allocated SRAM_L and 3/4 is allocated
to SRAM_U.
The on-chip RAM is implemented such that the SRAM_L and SRAM_U ranges form a
contiguous block in the memory map. As such:
• SRAM_L is anchored to 0x1FFF_FFFF and occupies the space before this ending
address.
• SRAM_U is anchored to 0x2000_0000 and occupies the space after this beginning
address.
Freescale Semiconductor, Inc.
FOPT boot options
Table 4-2. KL27 SRAM memory size
Device
KL27 Sub-Family Reference Manual , Rev. 5, 01/2016
for details of its definition.
SRAM
32 KB
32 KB
32 KB
32 KB
32 KB
32 KB
32 KB
32 KB
Chapter 4 Memory Map
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